1. Trailer Leaf Spring Suspension
  2. Timbren
  3. Axle Replacement System
  4. Axles
  5. Universal Fit
  6. 7000 lbs
Timbren Axle-Less Trailer Suspension System - Spindle w/ Brake Flange - Regular Tires - 7K

Timbren Axle-Less Trailer Suspension System - Spindle w/ Brake Flange - Regular Tires - 7K

Item # TASR7KS01
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Our Price: $788.20
Trailer Leaf Spring Suspension
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Trailer Leaf Spring Suspension TASR7KS01 - Universal Fit - Timbren
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Designed for regular tires, the Axle-Less system provides a smooth, quiet, safe ride and can eliminate the need for an axle. Suspension units with brake flanges replace your existing axle and operate independently. Fits any frame width. Lowest Prices for the best trailer leaf spring suspension from Timbren. Timbren Axle-Less Trailer Suspension System - Spindle w/ Brake Flange - Regular Tires - 7K part number TASR7KS01 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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Timbren Trailer Leaf Spring Suspension - TASR7KS01

  • Axle Replacement System
  • Axles
  • Universal Fit
  • 7000 lbs
  • Timbren
  • Spindles Only

Designed for regular tires, the Axle-Less system provides a smooth, quiet, safe ride and can eliminate the need for an axle. Suspension units with brake flanges replace your existing axle and operate independently. Fits any frame width.


Features:

  • Suspension system provides a safe, smooth, quiet ride for your trailer
    • 2 Separate units replace your existing axle
  • AEON progressive-rate main springs absorb road shock and support trailer's load
    • Deliver a smooth, stable ride, regardless of load size
    • Compress and become stiffer as load increases, boosting spring strength
  • Rebound springs act as return devices to minimize rattle and bottoming out
    • Create constant pressure on the arm, so the suspension is never completely relaxed
  • 2 Independent units can eliminate the need for a thru axle
    • Increase ground clearance
    • Lower deck height for easier loading and unloading
    • Reduce roll during cornering
    • Fit any trailer width
  • Built-in camber and toe-in help your trailer to track straight, reducing wear on the tires
  • Straight, EZ Lube spindles accept trailer hubs (sold separately)
    • EZ Lube feature makes it easy to grease bearings without removing the hub
    • Spindles can be removed from units for simple replacement if damaged
  • Heavy-duty steel construction with black powder coat finish resists wear and corrosion
  • Easy to install and align
    • Bolt or weld to your trailer's frame


Specs:

  • Fits: 1-axle and 2-axle trailers that use low-pressure, regular tires
    • Not recommended for triple-axle applications
  • Weight capacity: 7,000 lbs
  • Quantity: 2 suspension units without hubs
    • Works with Dexter 7,000-lb hubs (42866UC3-EZ)
  • Spindle/Hub compatibility:
    • Bearings: 25580 inner/14125A outer
    • Seal inner diameter: 2.25"
  • 3-Year limited warranty


Note: The Timbren Axle-Less suspension system may require additional support on your trailer. If your trailer does not have a crossmember above the spot where you want to install the Timbren system, you may need to reinforce the frame. You can accomplish this 3 ways. First, you can retrofit the trailer with a crossmember. Second, you can build out the trailer frame. Third, you can use 2" x 3" steel tubing to connect the 2 Timbren suspensions together using the built-in hole on each unit.


Ground Clearance

Ride on rubber with Timbren's Axle-Less trailer suspension system. This one-of-a-kind suspension consists of 2 separate units, each containing rugged steel arms and 2 strong, hollow rubber springs. Overall, the system safely and effectively absorbs road shock, minimizes trailer bounce and rattle - regardless of load size - and helps to protect your trailer's components and cargo. Built-in camber and toe-in keep your trailer tracking straight to minimize tire wear. Integrated hangers attach to your trailer's frame. And 2" holes make it easy to reinforce your trailer's frame by adding steel tubing (if needed).


The Axle-Less independent suspension system replaces your trailer's existing leaf spring suspension and can eliminate the need for an axle. The independent action of the suspension reduces roll when your trailer is cornering and allows you to maximize ground clearance and minimize deck height. Your trailer can have the same side-to-side clearance as your tow vehicle. And the low deck height makes it easy to load cargo from either the rear or the side.


Because you're riding on rubber, your trailer will ride smoothly and comfortably, whether you're navigating rocky terrain or highway asphalt.


Timbren Axle-Less Suspension Parts

Components

  1. The AEON progressive-rate main spring supports the weight of your trailer and cargo and easily absorbs road shock. It is constructed of heavy-duty, hollow rubber.
  2. The rebound spring minimizes trailer bounce, rattle and bottoming out. It keeps the suspension under constant tension and ensures that the main spring compresses and expands in a controlled fashion. And it delivers a smooth, stable ride - regardless of how much cargo is on the trailer.
  3. The trailing arm and integrated hanger attach the suspension to the side and bottom of the trailer frame.
  4. The control arm carries the spindle and the hub. It pivots on strong, long-lasting urethane bushings that never require lubrication.
  5. The EZ lube spindle is simple to grease. If damaged, it can be removed and replaced, saving you both time and money.
  6. The hub is not included with this model.
  7. The built-in hole accepts 2" x 3" tubing. If there is no crossmember above the suspension, you can easily add support to your trailer's frame by inserting 2" x 3" steel tubing through the hole on each suspension unit and then bolting the tubing into place.

Timbren Axle-Less Suspension vs. Leaf Springs

Leaf Spring Example

The Axle-Less suspension's progressive spring is a definitive upgrade over leaf springs. Although leaf springs deliver a stable ride when supporting a load, a trailer with leaf springs will bounce and rattle when it's empty or supporting a light or off-center load. On the other hand, your trailer can bottom out on bumpy roads if the load is too heavy. The AEON progressive-rate springs of the Axle-Less suspension always deliver the same reliable performance, no matter the load size. As more weight is added to the trailer, the springs compress and become stiffer, offering more support for heavy loads. And because they rebound more slowly than leaf springs, the AEON springs do a better job of absorbing road shock, thereby keeping your trailer from bouncing and rattling when you're carrying a light load. So with this versatile system you will enjoy a smooth ride whether you're towing an empty trailer or a hefty load.


Unlike leaf springs, Timbren's Axle-Less suspension units operate independently of one another. Each spring activates only when needed. This reduces roll and delivers top-notch performance, even when you're hauling off-center loads. When your trailer with leaf springs takes a turn, one side of the suspension compresses and takes on more weight, and the other side becomes looser and bounces. This causes rattle and can make the trailer lean to one side. But when your trailer with the Axle-Less suspension takes a turn, one side compresses and becomes more rigid to absorb the weight, and the other side expands to normal height to help steady the load and minimize bounce and rattle. The load stays better balanced, even if it is off-center.


Timbren Axle-Less Suspension vs. Torsion Axles

Torsion Axle Example

Timbren's Axle-Less trailer suspension system is a great alternative to torsion axles. While both systems allow either side of the trailer's suspension to operate independently, only Axle-Less suspensions are actually separate units. Torsion axles still require a bar that spans the bottom of your trailer, whereas Timbren's system can eliminate the need for a thru axle - giving you the same amount of ground clearance from the front of your trailer to the rear. It also allows Axle-Less suspensions to fit any trailer width - unlike torsion axles, which have to be fitted to an exact frame width.


Axle-Less suspensions operate in a smoother, less stressful manner than torsion axles. Torsion axles use a twisting motion, where the bar inside the axle tube rolls against rubber cords or a rubber wall to create compression and resistance. The up-and-down motion of the main spring and the side-to-side motion of the rebound spring in Timbren's Axle-Less suspension work together to provide smooth, consistent compression - with no twisting - that results in a better ride and less stress on the suspension's components.


Installing the Timbren Axle-Less Suspension

Whether you are building a trailer or retrofitting your existing trailer with the Axle-Less system, you must make certain that the trailer's frame is both perfectly square and sturdy enough to support a heavy load without the aid of a thru axle.


Install Option 1

There are 3 ways to install the Axle-Less suspension. The easiest method, which is recommended if you are replacing axles on your trailer, is to install a piece of 2" x 3" tubing (sold separately - available at most weld shops) through the integrated holes in the Axle-Less suspension. Then all you need to do is bolt the suspension to the side of the trailer's frame with 3 bolts (not included).


Install Option 2

The second option for installation is to fabricate an inboard extension plate that attaches the trailer's frame to the Axle-Less suspension.


Install Option 3

The third method of installation is to bolt the Axle-Less suspension's hanger to the trailer's frame and to an existing crossmember that is in the area where you want to install the suspension.


With both the second and third options, you must use 3 bolts to attach the suspension to the side of the frame. And you also have to use 2 or 3 bolts to attach the suspension to the bottom of the frame extension, or crossmember. Both the second and third methods of installation will eliminate the need for a thru axle and provide the most clearance.


Measuring Diagram

Timbren's Axle-Less suspension units should be installed directly across from one another. Before mounting the units, measure back from the coupler and mark the frame to make sure that the 2 distance measurements (A and B) are within 1/8" of each other. Then you can drill holes through the frame and attach the hangers with Grade-5, 1/2" bolts (not included).


Dimensions of the Timbren Axle-Less Suspension

The following diagrams show measurements that were taken with electric drum brakes installed on the Timbren Axle-less suspension system.


Dimensions 1

Dimensions 2

Dimensions 3

Dimensions 4



ASR7KS01 Timbren Axleless Trailer Suspension System - Spindle w/ Brake Flange - Highway Tires - 7,000 lbs

Installation Details TASR7KS01 Installation instructions



Video of Timbren Axle-Less Trailer Suspension System - Spindle w/ Brake Flange - Regular Tires - 7K

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Timbren Axle-Less Trailer Suspension System Review

Today we're going to be taking a look at, then we'll show you to install the Timbren Axle-less Trailer Suspension System. These are available in multiple configurations to fit most applications. Just check our website out for details. Today specifically we're going to be using part number ASR3500S05. This is a spindle only configuration for 3,500 pound axles. With the spindle only configuration we're going to be reusing our bearings, we're going to be reusing our brakes and our drums.

You may want to pick up some new seals if you're going to go this route. We also have the full kits available with the brakes, the drums, and everything that you'll need. The Timbren Axle-less Suspension is an excellent, excellent product. You can tell an immediate difference as soon as we start hauling our trailer with the items installed. It's much, much quieter, much smoother, you don't feel the weight in the truck nearly as much as you did with that standard suspension. You can see as we're cornering there's no transfer of weight.

They're working independently to keep our trailer nice and level. Here's what our kit's going to look like installed. This axle-less suspension system from Timbren is kind of a solution for all that noise and everything that we typically get with our trailers; real rough ride. Now, they use 2 rubber springs essentially, they're Aeon rubber springs. We've got our larger one here in the back. This is the main body of the system, and as we load it more and more and more it constantly kind of adapts to that to give us just the ride of support that we need. To keep this constantly under tension so we don't have to ever worry about a lot of that rattling and stuff, we've got a rebound spring right here in the front.

These are designed to work with really any style of trailer frame, no matter of the thickness here. Depending on the application if you've got a really wide trailer, well then you're just going to put the 3 bolts in the side, 3 bolts up through the bottom. We're dealing with a little bit narrower angle channel here, so what we've done is we've put the square tube across the front. You could also design a bracket to go on the side, if you wanted like a gusseted bracket. There's a lot of options out there. We went with the spindle only design.

It's really heavy duty, too. You can really tell about the quality that they've put into the design of it. Going to have a black powder coat finish on all of our surfaces and this real nice thick steel fully welded around all of our points with reinforcement gussets right where we want them. You can just tell it's a really well built system. Another advantage that we're going to see with the axle-less suspension is going to be increased ground clearance. We don't have that axle that typically hangs down here lower. Even with us using the cross tube design or the cross bracing design, it's tucked up right underneath of our trailer. It's even up higher than what our cross members are here for our flooring, so really tucks it up. Then this area down here, you can see smooths off. The axle-less suspension system can also help us with getting our deck height of our trailer where we want it. These are available in both drops and lifts. One of the added benefits that we get out of this axle-less system is that we're not tying this side of the trailer to that side of the trailer with one of those through axles that are going to go right through down here where all our movement's going to actually take place. This allows these to work independently of one another. If we hit a bump on that side it doesn't transfer all the way over here and then cause this side to go too. Now, they've set this up with tow and camber adjustments aligned 00:04:02 already, so we should have great tire wear as we track down the road. However, if need be they do provide us with some nice alignment shims here if we do want to change it up a little bit, or maybe our trailer's frame wasn't exactly square. Another great thing about the Timbren Axle-less Suspension set up is that they use urethane bushings here at our pivot point. It's going to be very very long lasting. It's going to keep everything nice and tight, and we don't have to worry about lubrication. To begin our installation we need to get our factory axle out. Now if you are going to reusing hardware off of the original axle it's best to do it when it's still on the trailer. That way you're not fighting the roll. All right, now you'll notice here on the frame of our trailer, this is our rear spring perch. We've removed the front to allow room. You may have to do that on yours, and there was a couple welds here and then here that kind of stuck out on the frame rail. We've gotten rid of those. Just use a grinder, get it nice and clean. We want a nice smooth surface for this to mount up against. We're going to mock it up now just by bringing this edge up and letting it sit on our trailer. You can see the 3 holes we're going to use for attachment. Now the key to getting this set up properly, you can see we've got some plumb bobs here. Basically it's just a string with a nut tied to the end of it. We've gone off of both of our spindles here in the same location, and then we've gone from the center of our coupler in the front so we've got them at 3 locations. Now we're going to measure from that string back to this string, and then we'll measure from the front over to the other side. It's very important for us to have these within an 1/8 of an inch. What this means is that we've got the perfect triangle from the coupler back to each of our spindles. We won't have to worry about any kind of side tracking. It's going to keep our trailer running straight behind us, and it's going to make sure that we're getting proper tire wear. Adjust as necessary. We want to make sure if you're using plumb bobs that your trailer's level. After that it's just a matter of getting them lined up to where they're going to be just right. We'll measure, mock it up, measure, mock it up, and then once we have it right where we want it we can get our holes drilled. Now we want to take a punch and I'm going to mark the middle of my rear hole. Then we can start stepping up to a 1/2 inch hole diameter is what we want to end up with. We start with just an 1/8 inch and then kind of move up as we go. All right, that created a little too much movement, so we want to get this hole drilled perfectly to get that suspension out of the way and get our hole drilled out. We'll bring it up, slide our bolt through the hole there, and then put our hardware on the inside. That's going to do a good job of holding that in place while we get the rest of our holes marked. I'm going to use a jack stand again here just to apply some upward pressure. I'm going to tighten this nut down temporarily. That's going to draw it right over into position we want to make sure it's pressed up firmly all the way in the front. We don't want any kind of gaping between the top of our enhancement here and the bottom side of our trailer. Now we can use our center punch or our 1/2 inch bit here and get the center of our holes marked. You see I've already mocked up what would be the passenger side of the trailer. Anything I do on this side, I'll do the exact same thing on the other side. Now we're ready to get these pulled down and we'll get our holes drilled out. All right, now with those holes drilled out let's get our suspension back up into place here. What I want to do is just get these 3 started and I'm going to get them snugged down. This isn't a permanent mount, so we don't want to torque them all down. We've got to measure for that cross tube. We're going to be using this opening here for a 2 inch by 2 inch cross tube section that's going to give us additional strength. There's a few options on the additional strengthening process that you can check out in the instructions. That's mainly for just like the trailer that we've got here, just your simple utility trailer that just has an angle iron frame. If you see channels and things like that, typically once we're putting these on the heavy-dutier trailers there's going to be plenty of thickness in the frame. You really don't have to worry about having that cross tube. Now to figure out how long of a pipe that we're going to need here we're just going to measure inside to inside. There's going to be a couple little lips there. Right here there's a little bit of a lip. We just want our pipes to sit just inside of those, and we'll want our square tube to fit right inside of that. Now with our pipe cut to size all we'll need to do is slide it in all the way across, and we'll want to make sure that it engages our other side as well. All right, that's held in place there kind of by those little lips we saw in each end. We need to get our bolt holes here marked so we can drill our holes and install our hardware. Those should be marked so let's pull our tube back out of there, get those holes drilled, and we can put it back in. Now we can get our center punches taken care of here. Just like before we'll just step up our bit size as we go, makes it a little bit easier. Now with the tube back in we'll take our hardware, got kind of a tight squeeze here but we're just going to place that through. Place that flat washer inside of there on the bolt, then we need to get our nut started. One of these little flexible magnets is a really good way that bolts quite a ways back in there. If you've got a different method that works for you, great. My fingers won't reach in there. Maybe a pair of needle-nose you could get to work in there. These little magnets are pretty readily available and pretty handy to have, so that would be my recommendation. We'll just leave that one loosely installed. Now we're going to take our other bolt, we want to place it through both of our holes but we don't want to have it poked all the way through. What we're going to do is have that stay there as we get our spindles torqued down, as we get our brackets to our frame torqued down. Then we'll torque down our inside bolt, then we'll be able to get to this and torque this down. We'll just at that point either thread it in by hand or with a wrench, put our stuff on it and get it torqued. If we we're to leave this out completely so we could get to that back bolt, it's likely that our holes would then be slightly misaligned and it would be real difficult to get it in. Now we want to look in the instructions and find our torque specifications and we want to go through and torque everything down in the appropriate order to those specifications. I had these pretty snug when we we're doing the install just so we wouldn't have to worry about any movement or anything with the spindle. With those done we'll move up to the 3 here in the side. Once those are properly torqued we'll go to the ones that we've got inside of our tube. With everything torqued down that's really all there is to the install. I would here on this cut piece of tubing, just a little bit of black spray paint there. Just kind of seal that up, prevent any rusting there. Then, depending on your set up if you're using, if this is on a braking axle then you'll put your brakes back on your flange and then rebuild your hub per the instructions. If this is on a lighter-duty trailer and if you don't have brakes then you're just going to rebuild your idler here. Good time to replace the seals, repack the bearings, inspect those bearings, or just order a new kit to fit right on here and then you'll know you're going to be safe as you go down the road. All right, now we'll lower it down until the tires touch the ground and you'll want to be sure to use a torque wrench and get all of your lugs torqued down appropriately. That's going to complete our look at the line of the Timbren Axle-less Trailer Suspension Systems.


Customer Reviews

Timbren Axle-Less Trailer Suspension System - Spindle w/ Brake Flange - Regular Tires - 7K - TASR7KS01

Average Customer Rating:  4.6 out of 5 stars   (126 Customer Reviews)

Designed for regular tires, the Axle-Less system provides a smooth, quiet, safe ride and can eliminate the need for an axle. Suspension units with brake flanges replace your existing axle and operate independently. Fits any frame width.

- TASR7KS01
by:

Purchased for a prototype part. It exceeds my expectations and got here fast! 745607



- TASR7KS01
by:

Can't wait to install! They are well co nstructed! 722817



- TASR7KS01
by:

Good application for custom axle set up that would not allow mounting to outer frame. Suspect I will need to make adjustment to camber as these mount to inside of frame with wheels in rather than outside of frame but shims were provided with kit. Also confirmed with mfg., Timbren, that these could be used in that configuration. Parts arrived in good condition in timely fashion. Did received two different type of tires but that was easily resolved with a single email. Good company to work with, competitively priced. 598251



- TASR7KS01
by:

Just as discribed and delivered proptly. Everyone I spoke to at etrailer is very friendly and super helpful. 372267



- A20RS545
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


I pull my Sea Doo GTX 300 (that means they are pretty heavy!) PWC's from Wisconsin to Florida twice a year. That said, this last trip to Florida caused me to bend the original straight axle on my trailer. Not fun. I ordered the Timbress Axle -less axles, and after a few hours of work on the trailer, they were installed, square and true. I immediately put the Sea Doos on the trailer to see how the trailer performs with the new axle-less system on it. one word: FANTASTIC!!!! I guarantee if I have to fix this issue again, I will use the exact same product. It is awesome! 736299



- ASR2KHDS05
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


Built a custom trailer to haul an ATV on some bad rural roads in Baja. I used the 2" drop axel-less suspension to allow for full size tires and wheels yet keep center of gravity low. Easy to install on exposed frame, but note that a required brace or 2" square steel bar may be needed and sourced on your own. The finish is not very durable and does not survive the normal bumps, wrench scrapes and scratches of installation; plan on some touch up once installed. Pay attention to the spindle clearance and wheel offset. 317250



- A35RD545E
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


Extremely good product. Rides much better than traditional leaf springs. Ordering. A 7,000lb 8 lug set for the big trailer. 593860



- ASR1THDS03
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


I installed these on a small jeep style camping trailer that I built. I plated my frame and also used the suggested two inch square tubing to tie them together. It rides very well, looks like it should be very durable, it's a simple design, simple to install, more economical than other independent systems, has less parts to go bad than other systems, I would highly recommend to any body using a trailer on rough roads! 582196


Comments
We just drove 1200 miles mostly at 75mph. The axles work very well in all conditions, trailer ride very smoothly.
PhilTreeMan - 11/20/2019

63425

- A20RS545
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


Built very rugged. I am glad this is available because all the 2K axles I found were not wide enough for my application. This setup allowed me to keep expenses down and build the trailer I wanted. 326161



- A12WS545
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


I am pleased with the Timbren Axle-Less Trailer Suspension System with Hubs - 5 on 4-1/2 - Off-Road Tires - 1,200 lbs. I had a project and it worked out just fine. 254872



- ASR5200S01
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


Timbren Axle-Less Suspension - Spindle Only - Regular Tires - 5200 lbs Item # ASR5200S01 Looks great on empty trailer, idea is good, bad execution. When loaded tires "splay out" severely, excessive tire wear, obviously too much play in system somewhere. 584361


Comments
Excessive camber which causes wear on the portion of the tire tread closest to the trailer can be caused by a few different things. 1 The axle-less suspension system has a 5200 lb per set capacity, so youll want to be sure this amount is not being exceeded. 2 The surface of the trailer that the suspension member is added to needs to be an integral part of the trailer that should have NO give in it whatsoever. Any flexing of the side member there will throw off the camber of the tires. I have seen what you describe occur when the suspension system has been mounted to tubular steel that made up the edge of the trailer frame. In that instance, some angle iron was added to stiffen things up. 3 Its not required, but a piece of 2x3 inch tube steel of the appropriate length can be used as a beam connecting the two sides, utilizing the existing hole in the axle-less suspension member. This will help stiffen things up. 4 The suspension system should have included some shims that can be used where the spindle attaches to the suspension portion of the assembly. Using these shims can decrease the camber, but only if the points mentioned above are taken care of. Ive checked with Timbren regarding the above, and they concur.
-- Mike L - 11/21/2018

45920

- ASR3500S06
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


The suspension I ordered is of high quality and I received it sooner than I expected , its good to do business with a company that produces its products so fast. 271528



- A35RS545
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


I was amazed at the attention given to me and my order. I was kept up to date untill my order arrived, it also arrived a few days before the expected time. The axle less system looks to be so much easier to install and more functional than the regular spring suspension. If compared by cost and labor to the other spring system, I find that this is considerably less. I have yet to install it, but will send photo of finished product as soon as possible. 178367



- A35RS545
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


Had a broken torsion axle on dual axle boat trailer. Manufacter six to eight weeks to replace. Got this product in week. Installed same day. Very happy .cancelled new Axel order. 263087



- A12WS545
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


Purchased 2 sets of the Timbren 1200 Axle-less systems for upgrading the suspension on an older 30' ft glider trailer. Single axle with small (13") tires made towing tough due to porpoising, dragging on drive entrances do to poor flotation; also German made and metric, no repair parts. GVW 2000 lbs equated to bouncy ride. Dual sets now allow the trailer to ride over bumps and sharp inclines easily, smoothly, little bounce on country roads; porpoising is history. My glider now rides securely, safely, quietly. Install time 4 1/2 hours (includes head-scratching). Results are outstanding, units are totally solid. Recommend the square tube interconnect, easy and quick - trailer frame was on the light side, so a precautionary fix. Clean look underneath. Ordered 5 wheels w/tires, very nice. Helpful neighbor so impressed he ordered a HD single set for his new DIY snowmobile trailer. Customer satisfaction 100%, from phone order, online support, product information, immediate shipping, install instructions, followup... HIGHLY RECOMMENDED! 580744


Comments
I have just a little more to add regarding my purchase: Two sets, of the Timbren Axle-less assemblies, 1200 lb, and 5 wheels. I placed the order via phone, and whoever was on-call that day provided great answers and recommendations regarding the units, wheels and tires. At 31 feet, the trailer originally exhibited amplified porpoising on any bumps or dips in the road. Also bouncing and occasional sideways tipping due to the single axle. It made a lot of noise on my mountain community washboards. I speculated that the Timbren units would solve most, if not all of these problems and they have. Installation on my older 31 ft European ie, metric and no longer manufactured glider trailer was a mere 4.5 hours from removal of the old single axle to setting the trailer back down on its new assemblies. Instructions are complete, precise, useful and helpful. Appreciated. Little to comment on as installation was all straight-forward. I would like to describe the maiden voyage to the airport and back, but there is nothing to tell, other than it towed beautifully proper alignment instructions, and all that I viewed from the rear view mirror looked like a magic carpet ride. It rides over washboards and pot holes like a marathon hurdler, the 4-wheel independent suspension is great. Packaging: the shipping boxes all arrived in good condition, but the cardboard component boxes inside them... not so much. Most were ripped and open due to heavy components lightly surrounded with brown packing paper, just token amounts. Parts: all was accounted for minus a pair of spindle axle washers for one set, easily replaced at the local farm and ranch supply. No squawk, just an fyi. I am very pleased with your product and support, and was happy to leave a 5-star review with photos. The upgraded suspension was also a topic this past weekend at the glider port by those who regularly trailer their ships to various soaring events, some as far as a thousand miles away. My compliments to eTrailers, hope you can use my info,
-- comment by: Kelly F - 11/28/2018

46128

- ASR2KHDS05
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


I was looking for a low profile axle system for my motorcycle trailer. The primary requirement was to be able to load my motorcycle by myself which required a low-profile trailer. With the 4" drop provided by Timbren, this setup turned out great. I originally intended on using ramps but after I swapped the leaf spring axle out with the Timbren, I found I was able to ride my motorcycle on/off without the need for the ramps. Originally, I was going to go axle-less but I found when torquing down the assembly to my frame it started to compress the aluminum rail. To take the pressure off the frame I added the 2" bar from axle to axle. Pulls smooth and effortlessly. I've had several people comment on the trailer height with one wanting to buy the trailer from me. This person worked at the local Honda Dealership. He thought it was a great design and I would imagine he's seen a variety of trailers come through his lot. The other option I considered was a torsion axle but I was looking for the lowest profile I could get. Therefore, cost was not a key factor. I also like the soft ride the Timbren system provides. Not sure if the torsion design would have been as smooth over bumpy roads. Regardless, I'm pleased with how this project came out. 352952


Comments
Its been a year since Ive installed the new axles on my trailer my comments above still hold true. Im very pleased with the ride quality of the system after a year. The trailer tracks true and has hauled many things other than my motorcycle. Even empty it doesnt hop around like the original stock straight axle did. No regrets on the purchase.
Pat A - 03/15/2018

35909

- ASR2KHDS03
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


Excellent, helpful customer service sold me this product, and trust me when I say it's worth the price tag. Pulled the old axle and leaf spring off a 60's era Bantam and swapped out for this with a support bar in between. Bumped up tires to 315/75r16 BFG TA/KO's to match my rig and am amazed at how much better this trailer now pulls. Empty it wad bouncing all over the place with the old axle and leaf spring setup. Now I hardly even know it's there. Was very easy to install, took a couple hours but I am happy with how it turned out. A+++ product and customer service! 172019


Comments
HI Matt,WHat size wheel did you use and which hub did you get to match?Appreciate the info
-- comment by: Conrad S - 04/01/2015

10523
Comments
They are GREAT! I put them on a small offroad trailer that has followed me all over some really rough roads in remote Oregon, Washington, and Idaho. They have performed flawlessly, helped the trailer tow extremely well, and were the single best upgrade I did to that trailer. Very much looking forward to another summer of exploring! Massive upgrade to the stock axle leaf spring combo, and I have had the opportunity to show it off to alot of fellow overlanders. I cant speak high enough of them. I also purchased a set of airbags for my vehicle which unfortunately have not held up terribly well. I have had to field repair one once already, and neither holds air terribly well. Truth be told they seem very underdesigned for the job they perform. From my super secret high tech pocket internet window.
Matt N - 02/06/2016

16696

- ASR3500S06
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


Only been driving around on the axle-less system for about a week now and it has far exceeded expectations. I get better gas mileage, my trailer now sits like it was intended to, my trailer doesn't bounce like it used to, I wouldn't trade this axle system for any other. Just wish I would have known which outboard assembly arm my trailer needed with the axle-less system before I placed my order. Still not a problem though, plan on using the wrong outboard arm to build a different trailer. So far, a great product! 208571



- ASR5200S01
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


A little bit pricey, at first. But in the long run they are cheaper. We used to bend or break an axle every 3 or 4 months. But we have had these a couple of years now with no problems. One thing that is nice is on a tandem axle set up you can get a flat and you just have to take the wheel off and run on 3 or 2 wheels without the hubs hitting the ground. 593458



- A20RS440
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


Everything was as advertised! Fast shipping and well packaged! And good quality. And the best part, they respond very fast to my emails!! very nice! Don't think all be using my local retailers anymore. 556069



- ASR2KHDS02
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


Great looking parts, robust design, professional looking welds....Nothing missing... I contacted Timbren prior to my purchase and received a prompt, helpful reply... The supplied instructions are complete and straight forward, i'm confident should i have any issues, contacting them will get them resolved... 286117



- A12WS545
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


Good product and easy to install on my new build of a off road trailer for my side by side. Thanks 628307



- A20RS545
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


This is my favorite suspension system in all the world! Rides like an absolute dream. Easy to set up and install. Works on any trailer frame size. One thing to know: You don't get the ride height you get with a standard leaf spring suspension. Even with 15-inch wheels, the ride height is pretty low - maybe 10-12 inches of ground clearance to the bottom of the main trailer frame. If you need more ride height, get the lifted version. A few areas of possible improvement? It's difficult to bolt the suspension unit to a crossmember using the middle bolted hole, which uses a tacked-on weld nut. You have zero room for error when drilling the hole through your cross member, and you can't really use the suspension as a template. Hmmm ... also, the hanger plate mounting holes are positioned 1-inch from the bottom of the trailer frame. That makes it very difficult, since I use channel side rails, to use standard 1/2-inch USS or SAE washers on the backside. There isn't room. Just an extra 1/4 of a inch would allow me to use standard washers underneath the nuts on a channel frame. Nitpicking aside, it's amazing. 410020



- A20RS545
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


not happy with one lug nut missing threads!!! but I think they also could supply the wedge plate! the horizontal holes never change and the lower vertical should be slots. for the money I shouldn't have to make a plate. 202996



- TASR35HDS06
by:

Review from a similar Axle-Less in Trailer Leaf Spring Suspension


We buy a number of things from E trailer and have always found there support and online cataloging very helpfull. 318927


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Ask the Experts about this Timbren Trailer Leaf Spring Suspension

  • 7k Timbren Trailer Axle that Gives Lower Profile
    It's hard to give you an exact deck height you'd have with the Timbren Axle Less kits we offer like the part # TASR7KS01 as it depends on the wheel/tire size you use and frame height, deck thickness etc. But if you are looking for the lowest profile possible the 4 inch drop version part # TASR7KS02 is the kit for you. To give you an idea on overall height though this will put the center of your trailer wheel exactly 3/8 inch below the frame of the trailer. So you could calculate the diameter...
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  • How to Determine Length of Axle When Rebuilding Trailer
    The axle length is actually going to depend on a few factors; the 83" width of your trailer is important, but you also need to add the width of the fenders or wheel wells to that if they add to that. From there you subtract the width of your wheels and the length of your two spindles. This will give you the necessary axle tube length. Another option is to forego the equation and instead use an axle-less system, the Timbren Axle-Less Trailer Suspension System - Spindle w/ Brake Flange...
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  • Recommended Axles for Two Trailer Builds with 14K Capacity & 7K Capacity
    For your trailers, I recommend not using a steering axle because there are different requirements for them and your trailers don't need them. If you want to pursue the steering axle you will need to check with your local DMV for requirements. My recommendation is to use a single or tandem axle application for each trailer. If you want to use a single axle for your 7K trailer, I recommend the Timbren Axle-Less Trailer Suspension System - Spindle w/ Brake Flange - Regular Tires - 7K...
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  • Recommended Trailer Axles for 83 Inch Wide Car Trailer
    With an 83 inch frame, the spring locations could be at multiple points. If you are replacing axles, you will need to know your dimensions for the hub face to hub face length, the spring locations center on center, and the weight capacity you need. We do not carry any through axles that will fit your application, but we do have an Axle-less system that will work for you and you don't need the dimensions listed above. If 7,000 lb axles work for your application, I recommend the Timbren...
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  • Recommendation Of 7000-lbs Axles To Replace 5200-lbs Axles On Fifth Wheel
    Unfortunately the standard axles in our selection available have a maximum capacity of 3500-lbs. I do have a Timbren Axle-Less Trailer Suspension Item # TASR7KS01 option which would also replace your suspension. Timbren systems provide smooth, quiet, and safe rides without the need of an axle. Timbren systems also give you an independent suspension for better handling. It also has a 7000-lbs weight capacity. You would also need new trailer hub-and-drum assembly like Item # AKHD-865-7-2-EZ-K....
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  • Recommended 7,000 lb Axle System For Gooseneck Trailer
    The only 7,000 lb axle we carry is the Timbren Axle-Less System. This is not your traditional through axle, but will work just as well. It is available in 2 options: a regular suspension and spindle # TASR7KS01 and a 4 inch drop spindle # TASR7KS02. Either of these will work well on a gooseneck trailer application and will replace leaf spring suspension components as well. It will require a cross frame member at the axle location or a 2 inch square tube (not included) to be added to...
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  • Recommended Suspension to Replace 5,200 lb Axles
    Before potentially upgrading, you'll need to use your trailer's VIN and contact the manufacturer to ensure it can handle the extra capacity you're looking to add. If so, you can upgrade by using the Timbren Axle-Less Trailer Suspension System # TASR7KS01 which has a capacity of 7,000 lbs and will replace your traditional axle. These suspension units can be bolted or welded to your trailer, though if you do not have a crossmember above the area you are going to install the Timbren, you might...
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  • Recommended Disc Brake Kit For Timbren Axle-Less 7,000-Lb Trailer Suspension System
    We do have disc brake options for the Timbren Axle-Less Trailer Suspension System, part # TASR7KS01. The disc brake system I recommend is the Kodiak Disc Brake Kit, part # K2HRCM1337-9DAC. This kit comes with 2 full brake assemblies and has an 8 on 6-1/2 wheel bolt pattern. I have attached a helpful article that explains what is needed to add hydraulic disc brakes to a trailer you can check out.
    view full answer...
  • Weight Capacity of Timbren Axle-less Suspension Systems
    The Timbren Axle-less suspension systems are weight rated per axle. So the 7,000lbs is for the set. For your 13,000lbs trailer you would need to install 2 sets, so making your trailer a tandem axle. For example the 7,000lbs kit # TASR7KS01 has a quantity of one axle set. It has two pieces that equal one axle, a driver's side and a passenger's side. The # TASR7KS01 has a weight capacity of 7,000lbs. If you purchased a quantity of 2 # TASR7KS01, this will give you a weight capacity...
    view full answer...
  • Axle Replacement for Dexter SLR P12 #13 Torflex Axle
    It took a little while to get your information from Dexter. Your axle is a #13 Torflex Axle which is rated for a capacity of 8,000 lbs. We don't have an 8,000 lb capacity replacement, but we do have 7,000 lb capacity Axle-less Systems you may want to consider or tandem axle applications to get you to your capacity needs. For the Axle-Less system you may want to consider the Timbren Axle-Less Trailer Suspension # TASR7KS01 or the 4 inch drop axle # TASR7KS02. These will allow you...
    view full answer...
  • Timbren Axle Less 7K Axle TASR7KS01 Install Dimensions
    I attached a picture that has all of the dimensions available for the Timbren 7k Axle Less System part # TASR7KS01 that you referenced.
    view full answer...
  • Recommended Axle Capacity for 12,000 Pound Home Made Trailer
    In total you need enough capacity for around 12,000 pounds. Using tradition axles you can use 4,400 pound axles but those tend to be fairly expensive and replacement parts can be harder to find later. But the capacity of 3 of them would be 13,200 pounds which is a good place to be at. Another option is to use 6,000 pound axles. Making the trailer tandem axle instead of a triple would then be an option if you want. You can still have three 6,000 pound axles and the axles will be rated...
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  • Which Timbren Axle Less System Allows Use of 8 Lug Hub/Drums
    The Timbren Axle-Less Trailer Suspension System - Spindle w/ Brake Flange # TASR7KS01 is designed to be used with 8 lug trailer hubs part # 42866UC3-EZ. This is a 7k axle kit that would work well. For brake assemblies then you'd want the part # 23-324 for the left hand side and part # 23-325 for the right hand side and you'd be set.
    view full answer...
  • Rating of Axles on 2008 Forest River Cedar Creek Silverback 33LBHTS 5th Wheel Trailer
    The 2008 Forest River Cedar Creek Silverback 33LBHTS has a specified GVWR of 13,830-lbs. Since it is a tandem-axle trailer this means it is likely to have a pair of 7K-rated axles (it should, anyway!). The stock tire size specified is LT235/85R16E. We do offer beam axles but not ones rated as high as 7K. This is due to shipping size/weight restrictions. Typically a 7K axle has a hub face dimension of 89-inches and a spring center spacing of 74-inches. You can contact Forest River...
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  • Replacement Axle Assembly for 6,000 lb Torsion Axle Bend Spindle on 2012 ATC Car Hauler Trailer
    If just the spindle is bent, we unfortunately do not have a replacement spindle compatible as we only have agricultural spindles # AS3000F and # AS6000F in that 6,000 lb capacity. Because you don't have the hangers and leaf springs for a thru-axle replacement, the best option we have is to replace your axle with the slightly higher capacity Timbren Axle-less system. I recommend using the Timbren Axle-Less Trailer Suspension System - Spindle w/ Brake Flange - Regular Tires - 7K # TASR7KS01...
    view full answer...
  • Can a Damaged Torsion Axle Be Replaced with Timbren Axle-Less Suspension
    Torsion axles use internal rubber cords to provide the suspension motion and they really are not practical to repair/rebuild. Certainly any axle that was damaged in an accident should be replaced purely for safety reasons. It is potentially possible that in certain cases the spindles can be replaced but that depends on the specific torsion axle and the specific damage. We do not offer torsion axles but we do have axle-less suspension kits from Timbren that completely dispense with the...
    view full answer...
  • Can Brakes be Added to Timbren Axle-Less Trailer Suspension System
    Standard brake assemblies can be added to the Timbren Axle-Less Trailer Suspension Systems as long as the system on your trailer has the brake flange mounted. For example, the Timbren Axle-Less Trailer Suspension System w/ Brake Flange # TASR7KS01 are compatible with electric trailer brake assemblies like the Dexter # 23-105 for Left Hand and # 23-106 for Right Hand. You would then just add the Trailer Hub and Drum Assembly with 8 on 6-12 Bolt Pattern # 42866UC3-EZ. You will want...
    view full answer...
  • How Much Travel Distance Is Recommended for Fender Clearance with Timbren Axle-less Suspension?
    You can absolutely use Timbren Axle-Less Trailer Suspension System on a custom trailer application, however the instructions state that the axle-less systems are not recommended for triple applications. With whatever system you end up using, you will want to leave a minimum of 4-7/8 inches of clearance above the tires for the suspension travel. If you end up using these axles, I recommend the Trailer Hub/Drum Assembly - 5,200-lb to 7,000-lb E-Z Lube Axles - 12" - 8 on 6-1/2 - Galvanized,...
    view full answer...
  • Timbren Axle-Less Suspension System Compatibility With Office Trailer Or Modular Trailer
    Yes, the Timbren Axle-Less Suspension system can be used on office trailers or modular trailers. There are large capacity models like the Timbren Axle-Less Trailer Suspension System - 4" Lift Spindle w/ Brake Flange - 5,200 lbs # TASR5200S03 or the Timbren Axle-Less Trailer Suspension System - Spindle w/ Brake Flange - Regular Tires - 7K # TASR7KS01. These axles are to be mounted to a crossmember or use a 2 inch by 3 inch steel tube to run between them in the allocated spot. They...
    view full answer...
  • Trailer Axles and Electric Over Hydraulic Disc Trailer Brakes that Offer Best Ride for 14K Trailer
    For a 7,000 pound trailer axle I recommend a Timbren system, # TASR7KS01. This is actually an axle-less system with its own built in suspension. Since there is no axle beam connecting one side to the other it creates independent suspension at all the wheels. For 2 axles you would need 2 kits. For compatible disc brakes I recommend Kodiak dacromet disc brake kit # K2HRCM1337-9DAC. This kit is for 1 axle so to put brakes on both axles you would need 2 kits. For as much weight as you are...
    view full answer...
  • Timbren Axle-Less System That Uses Hubs With 8 on 6-1/2 Bolt Pattern
    Since you need hubs with an 8 on 6-1/2 bolt pattern, the Timbren Axle-Less Suspension System you would need to use is # TASR7KS01, which is rated for 7,000 lbs. The hubs that fit these Timbren's are the Dexter # 42866UC3-EZ, and the brakes to go with would be the Demco Galvanized # 23511-10, which are 12" x 2" and fit 14.5" to 6" wheels. I've added links to a couple video reviews on these parts for you to take a look at.
    view full answer...
  • Can I Upgrade One Axle At A Time From 3500 To 7000 lb Capacity?
    I don't recommend upgrading one axle at a time. The capacity differences are substantial, and you will be limited to the weakest component. So the axle, the springs, the equalizer, the brake assemblies, and the hub/drum assemblies would all need to be accounted for. This axle capacity upgrade will require different brake assemblies, different hub assemblies, different suspension and different wheels based on the bolt pattern needed for this 7,000 lb capacity. There can be all kinds...
    view full answer...
  • Recommendation for Trailer Axle on Wide Trailer
    We don't have a through axle anywhere near the length you mentioned for the width of your trailer. That would be a custom application for sure as manufacturers often have the 89 inch hub face to hub face as the longest measurement. Most states have a maximum width of 8 feet 6 inches, so I recommend you confirm with your state requirements. There will also be lighting requirements if over 80 inches. For your custom application, I recommend the Timbren Axle-Less Trailer Suspension System...
    view full answer...
  • Hub And Drum And Tire/Wheel Options For Timbren Axle-Less Trailer Suspension System # TASR7KS01
    The trailer hub-and-drum assembly I recommend for the Timbren system part # TASR7KS01 is part # 42866UC3-EZ. This hub and drum comes with the bearings, races, grease seal and EZ-Lube cap with a plug and has an 8 on 6-1/2 bolt pattern. The Timbren Axle-Less Trailer Suspension System, part # TASR7KS01 will fit any width trailer frame and can be bolted or welded for installation, can be used for single or tandem axle trailers. The EZ Lube spindles make it easy to add grease to the bearings...
    view full answer...
  • Parts Needed to Add Single Timbren Axle Less System to Trailer that Weighs 5,200 lbs
    We have a Timbren Axle Less kit part # TASR7KS01 that has a 7k capacity that would work well for you. With it you'd need hub drums part # 42866UC3-EZ which have an 8 on 6-1/2 inch bolt pattern, brake assemblies part # 23-106 and # 23-105 and then most likely new wheels and tire with part # AC16R8SMV which give you an ST235/80R16 mounted on an 8 lug wheel.
    view full answer...
  • Recommended Axle System For Spring Center Distances and Hub Face Measurements That Are Not Standard
    You are correct in determining that we don't have an axle that is a fit for your spring dimensions of hub face to hub face dimensions. However, we do have universal fit systems that actually replace the suspension and give you the spacing you need. You simply mount the Timbren Axle-Less Trailer Suspension System # TASR7KS01 to your trailer frame and then run a 2 inch square bar (not included) to fit in the integrated holes of the system and cut to your trailer's precise needs. I...
    view full answer...
  • Recommended Trailer Axle, Hub, Brake, And Wheel Assembly For A 40 Foot Trailer
    I can provide you with my recommendations for brakes, hubs, and tire/wheel combinations for a 7,000 lb. axle, assuming a 7,000 lb. axle will provide enough support for your trailer. I recommend using the Timbren Axle-Less Trailer Suspension System - Spindle w/ Brake Flange part # TASR7KS01. The Timbren Spindles are a top of the line option featuring an independent design to allow for maximum ground clearance. If you trailer is not already equipped with reinforcement beams, you will want...
    view full answer...
  • Are Longer Axles Available For Single Axle Pontoon Boat Trailer
    I did some research on your 1994 Sylvan Pontoon boat and found that the beam is 8-ft. The pontoon boat trailers I was able to find information on said the distance between the center of the bunks for a boat with an 8-ft beam are spaced 72 inches apart. I have attached a photo that shows how the bunks are placed under the pontoons. If your trailer frame is wide enough to be able to place the bunks with those dimensions then you would not need to try and extend the axles. You may want...
    view full answer...
  • Do the Axle-Less Suspension System Arms Need to be Installed on Specific Sides
    The instructions for the installation of the Timbren Axle-Less Suspension System show that the end of the torsion arm with the spindle needs to be facing rearward. I have also attached the instructions and a demonstration video.
    view full answer...

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