1. Trailer Leaf Spring Suspension
  2. Timbren
  3. Axle Replacement System
  4. Axles
  5. Universal Fit
  6. 3500 lbs
Timbren Heavy-Duty Axle-Less Trailer Suspension - 4" Lift Spindle - Regular Tires - 3,500 lbs

Timbren Heavy-Duty Axle-Less Trailer Suspension - 4" Lift Spindle - Regular Tires - 3,500 lbs

Item # ASR35HDS05
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Trailer Leaf Spring Suspension
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Timbren Universal Fit Trailer Leaf Spring Suspension - ASR35HDS05
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Designed for regular tires, the heavy-duty 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 Heavy-Duty Axle-Less Trailer Suspension - 4" Lift Spindle - Regular Tires - 3,500 lbs part number ASR35HDS05 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
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Timbren Trailer Leaf Spring Suspension - ASR35HDS05

  • Axle Replacement System
  • Axles
  • Universal Fit
  • 3500 lbs
  • Timbren
  • Spindles Only

Designed for regular tires, the heavy-duty 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
    • Oversize components are ideal for off-road and heavy-duty applications
  • 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
  • 4" Lift, EZ Lube spindles accept either brake assemblies or idler hubs (sold separately)
    • 4" Lift provides greater ground clearance
    • EZ Lube feature makes it easy to grease bearings without removing the hub
    • Spindles can be removed from units for simple replacement if damaged
  • Brake flanges let you install 3,500-lb rated brakes
  • 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 regular, standard-width tires
    • Not recommended for triple-axle applications
  • Weight capacity: 3,500 lbs
  • Brake flange bolt configuration: 5 bolt
  • Quantity: 2 suspension units without hubs
    • Works with Dexter 6,000-lb or 7,000-lb hub and drum assemblies (sold separately)
  • 3-Year limited warranty


The heavy-duty Timbren Axle-Less system combines Timbren's standard 3,500-lb Axle-Less system components with 2,000-lb AEON rubber springs, giving you a suspension system that is perfect for your small, off-road trailer. It allows you to use parts that would typically only fit a larger trailer on your undersized trailer. Add brakes for improved control. Get greater ground clearance and increased durability by installing bigger tires and wheels. The reverse drop spindles deliver even greater ground clearance and give you the ability to use larger tires than you could with a standard straight spindle. This makes the heavy-duty Axle-Less suspension system ideal for off-road use.


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 three ways. First, you can retrofit the trailer with a crossmember. Second, you can build out the trailer frame. Third, you can use standard, 2-inch by 3-inch 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 two separate units, each containing rugged steel arms and two 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-inch by 3-inch holes make it easy to reinforce your trailer's frame by adding standard, 2-inch by 3-inch-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. The spindle also includes a 5-bolt brake flange for simple mounting of trailer brakes.
  6. The hub is not included with this model.
  7. The built-in hole accepts standard 2-inch by 3-inch tubing. If there is no crossmember above the suspension, you can easily add support to your trailer's frame by inserting 2-inch by 3-inch steel tubing through the hole on each suspension unit and then bolting the tubing into place.

Timbren Axle-Less Suspension versus 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 versus 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 three 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-inch by 3-inch tubing (sold separately - available at most weld shops) through the integrated hole in the Axle-Less suspension. Then all you need to do is bolt the suspension to the side of the trailer's frame with three 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 three bolts to attach the suspension to the side of the frame. And you also have to use two or three 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 two distance measurements (A and B) are within 1/8 inch of each other. Then you can drill holes through the frame and attach the hangers with Grade-5, half-inch bolts (not included).


Dimensions 1

Dimensions 2

Dimensions 3

Dimensions 4



ASR35HDS05 Heavy Duty Axleless Trailer Suspension System by Timbren - Without Hubs - Regular Tires - 3,500 lbs

Installation Details ASR35HDS05 Installation instructionsAlternate Instructions ASR35HDS05 Installation instructions




Customer Reviews

Timbren Heavy-Duty Axle-Less Trailer Suspension - 4" Lift Spindle - Regular Tires - 3,500 lbs - ASR35HDS05

Average Customer Rating:  4.6 out of 5 stars   (140 Customer Reviews)

Designed for regular tires, the heavy-duty 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.

- 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



- 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



- 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

- 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

- 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



- 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


Comments
This has been a great product and works great and was easy to install
John V - 04/14/2020

73224

- 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


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

- 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

- 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



- 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



- 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



- 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



- 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

- 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



- A20RS545
by:

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


Only axle I could find to fit my application. Very cool product. Fast delivery. Easy instructions 642073



- A20RS545
by:

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


These units install easily, are well made, and perform great! The trailer doesn't bounce around like you see a lot of trailers do while traveling down a bumpy road. I traveled some unpaved roads with no issues. I am certainly glad I went axleless. I installed with 15" tires. Problem is I didn't go big enough. I intended to install on an existing trailer that I had. Changed my mind and built a new trailer. The new trailer came in heavier than I had planned. 2k pound capacity is now too small. I have to watch what I load the trailer with so I don't over load the suspension. I intend on buying the 3500 pound units when I have the money. 289894



- A35RS545E
by:

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


It looks like a wonderful, well built system. The shipment was partial, turns out they forgot the rest. Customer service corrected the matter, still took almost 2 additional weeks to get the rest. The packaging for shipping - The suspension pieces should be packed individually not together. The box was torn in half and falling out, scratched up like it had fallen out of the box during shipping when it arrived. There were no installation / alignment shims or mounting hardware in the box, don't know if they were included and missing or they forgot that as well. I found no information on the paperwork for the inventory expected to be in the box. 424016



- A20RS545
by:

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


This is my first time in building something like this 774926



- ASR2KHDS04
by:

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


I think their axle-less design is very clever. The build quality of the suspension part looks good. I have heartburn over the spindle build quality. The spindle is mounted to the suspension and then the trailer wheel mounts on the spindle. The spindles I received are warped from welding. The plate that bolts onto the suspension does not mount flat due to this warping. I called Timbren. The gentleman that helped me was very pleasant. I described the problems and he said he would check his inventory and call me back. He did call me back and said they are all like that. He said get out the grinder and fix what you can and just tighten the bolts super tight, maybe the gap will go away. Really? Wow. The other problems are a LOT of weld spatter where the bolts are supposed to fit and they made a bend in the plate too close to the bolt holes so two bolt heads hit the bend and dont fit flat against the part they are supposed to hold together. Yikes! I am taking the spindles to a machine shop to fix them but I would not have ordered this Timbren stuff had I been warned before hand. So, fair warning. 100490


Comments
Your comments regarding the Axle-Less Suspension are greatly appreciated. To address the issues you have pointed out, we have carefully reviewed our assembly. While we did not come across any major issues, we did however discover a few areas where the quality could be improved, specifically in the areas you brought to our attention. The following improvements have been made to improve the manufacturing process: - Robotic welder gun re-programmed so that it stops from getting too close to the areas adjacent to the mounting holes of the outboard arm and control arm. This will minimize weld spatter. - The distortion of the flat plates is due to the high degree of heat generated during welding. We conducted experiments, changing the sequence of welding operations until we were successful in minimizing the distortion. We apologize if our customer service in addressing your concerns was insufficient at the time of your phone call. Timbren is an ISO 9001:2008 company with an excellent reputation for providing customers with quality products that are well-performing and easy to install.
-- comment by: Quality A - 09/26/2013

2108

- 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


This suspension system did EXACTLY what I wanted. I replaced the leaf springs, axle/hubs on my small trailer. The new suspension improved the capacity, lowered the bed 4+inches, improved ground clearance and allowed me to rebalance the trailer all WITHOUT having to have any welding done. Everything needs to be measured very exactly and the alignment technique is fairly cumbersome and takes a bit of time. In the end, I have a quiet, steady, strong, low riding trailer. What more could you ask for 517553



- A35RD545
by:

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


enclosed are pics of trailer and spindle units. I was very happy with the end result, lowering ez loader trailer 8 inches for hovercraft. the spindle units were well made, very strong but had some weld repairs as pictures show.i could not set the needed adjustments till I cleaned up the units with a stone and file. also please improve the packaging . these heavy units need something better than cardboard for shipping. they were dislodged from Styrofoam and partially poked holes thru cardboard. but fortunately no damage there. again im happy with the installation.thank you!!! 506119



- A20RS545
by:

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


I wanted to give a lot star, but I spent three months because you missed parts of me a few times. Anyway it is very good for the product. 563720


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Ask the Experts about this Timbren Trailer Leaf Spring Suspension

  • Timbren Axle Less System, Hubs, Assemblies and Wheels for Camper Trailer
    The Timbren Axle Less system part # ASR35HDS05 that you referenced would be the way to go for what you are looking for. It's the appropriate capacity, will be smoother than what you have, and since it doesn't have a beam that runs across and has a 4 inch lift built into it would work great in an off-road setup. You would need the 6 on 5-1/2 Dexter Trailer Hub and Drum Assembly part # 8-201-9UC3-EZ to use this particular system. For brake assemblies part # AKEBRK-6, and for wheels you'd...
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  • Correct Brakes for the Timbren 3,500 Lb Heavy-Duty Axle-Less Trailer Suspension
    In order to add brakes and hubs/drums to the Timbren Heavy-Duty Axle-Less Trailer Suspension part # ASR35HDS05 you'll need to use the Electric Trailer Brake Kit part # AKEBRK-7-SA and the Trailer Hub and Drum Assembly part # AKHD-655-6-EZ-K which has a 6 on 5-1/2" bolt pattern.
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  • Recommended Timbren Axle-Less Suspension System To Replace Dexter Torflex On 2011 Jayco Jay
    Because you have axles mounted with a Norco bracket, you will not be able to lift your axles. You can increase your tire and wheel sizes to give you a little extra height within the limits of your current system. My recommendation is to change your axles out and use the Timbren Heavy-Duty Axle-Less Trailer Suspension - 4" Lift Spindle - Regular Tires - 3,500 lbs # ASR35HDS05. This will lift your axle 4 inches and give you the Aeon Rubber suspension. If you prefer a 2 inch lift,...
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  • Timbren Axle Less Setup for Trailer with 4 inch Lift and Surge Brake Compatible
    Best option would be the Timbren Axle Less kit part # ASR35HDS05 which has a 3,500 lb capacity and has a 4 inch lift built into it. It has brake flanges on the spindle already too so all you need to do is attach the hydraulic style of assemblies you want as well as install the hub/drums. For a hub you'd need the part # 8-201-9UC3-EZ and for brake assemblies part # AKFBBRK-7R for the right hand side and part # AKFBBRK-7L for the left hand side.
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  • Can I Use Idles Hubs Instead of Drums on the Timbren Axle-Less Trailer Suspension
    Yes the Dexter Trailer Idler Hub Assembly for 6,000-lb E-Z Lube Axles part # 8-213-51UC1-EZ will work with the Timbren Heavy-Duty Axle-Less Trailer Suspension part # ASR35HDS05. I was able to confirm that they use the same bearings. The reason that they say they are for drums is that typically there are brakes on larger trailers like what the spindles are designed for.
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  • Recommended Axle and Suspension System for 2015 Rockwood Freedom 1940LTD
    For your 2015 Rockwood Freedom 1940 LTD, I recommend the Timbren Heavy-Duty Axle-Less Trailer Suspension - 4" Lift Spindle - Regular Tires - 3,500 lbs # ASR35HDS05. This will give you the suspension components integrated into the axle-less spindles. With this kit, I recommend the Electric Trailer Brake Kit - Self-Adjusting - 10" - Left and Right Hand Assemblies - 3,500 lbs # AKEBRK-35-SA along with the Trailer Hub and Drum Assembly - 3,500-lb E-Z Lube Axles - 10" Diameter - 5 on 4-1/2...
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  • Timbren Axle Less Kit that Can Fit Jeep 5 on 5-1/2 inch Bolt Pattern Hub
    The 3,500 Timbren Axle Less kits like the part # ASR35HDS05 you referenced actually have 6k spindles on them so for hubs you have to go with the higher rated setups which unfortunately don't have any options in the Jeep bolt pattern you need. Could you get by with a lower rated Timbren Axle Less like the part # ASR1THDS03 which is a 2,200 lb axle and has 3,500 lb spindles so the hub you mentioned # 84555UC1-EZ would fit.
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  • Timbren Axle-Less Suspension System with Electric Brakes for a 3,200 Pound Trailer
    In the trailer world there is no 5 on 6-1/2 bolt pattern. And besides that trailer tires and wheels are not rated for use on a vehicle just as vehicle tires and wheels are not rated for use on trailers. The issue is that trailer tires are built with a thicker sidewall than passenger vehicle tires. The thicker sidewall can handle more vertical load but do not work well when lateral forces are applied to them such as when on the turning axle of a vehicle. So you can use an Axle-less suspension...
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  • Will 16 Inch Tires Fit Timbren Axle-Less Suspension System # ASR35HDS05
    As long as there is a hub that fits the spindle and has the bolt pattern needed for the wheels then yes the Timbren Axle-less system # ASR35HDS05 will work with 7.50-16 tires. For example hub # AKIHUB-655-6-EZ-K will accept 16 inch tires as long as the wheel has a 6 on 5-1/2 bolt pattern. I have linked a help article on determining wheel bolt patterns for you.
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  • Weight Capacity of Timbren Heavy-Duty Axle-Less Trailer Suspension # ASR35HDS05 Explained
    I apologize for the confusion on that but the Timbren Heavy-Duty Axle-Less Trailer Suspension # ASR35HDS05 that you referenced is rated for 3,500 lb as an axle. Each of the springs on either side of the kit has a 2,000 lb capacity. So spring capacity-wise this has an overall 4,000 lb capacity but the spindles and other components are the limiting factor at 3,500 lb.
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  • Correct Lift Kit for #10 Torflex Single Axle on Lance 1575 Trailer
    A #9 Torflex axle is rated for 1,000 - 2,200 lbs so since your Lance 1575 weighs well over 2,200 lbs dry I'm confident you have a #10 Torflex axle (which can be rated for 2,300 - 4,000 lbs). With that in mind, since you have a single axle trailer you need the Torflex Lift Kit # K71-707-01 which provides 2-5/8" of lift. Please note that if you have it mounted from the top then you also need the Side-Mount Frame Installation Hardware Kit # DX54FR to complete the installation. Just please...
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  • How to Choose Replacement Axle for Trailer With Mobile Home Axle
    We are going to have parts that will work for you, though the issue is your current mobile home axles; these are designed for one-time use (to move mobile home from Point A to Point B) and should not be used continually so you will need to replace them. In order to choose the correct replacement axle for your trailer you will need to know the dimensions of your current axle's hub face to hub face and spring center to spring center as in the diagram I have added; the other thing you need...
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  • Recommended Timbren 3,500 Axle-Less System with 4 Inch Lift Spindle for Lance Trailer
    The only real difference between the Timbren Heavy-Duty Axle-Less Trailer Suspension with 4" Lift Spindle - 3,500 # ASR35HDS05 and the standard Timbren # ASR3500S06 is that the Heavy-Duty model features a larger spindle that would accommodate larger hubs and wheels. I am not sure why Timbren would have suggested the Heavy-Duty model for your application but the standard Timbren # ASR3500S06 features the capacity you need, the lift you are wanting, and would allow you to retain the use...
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  • Switching to Timbren Axle-Less Suspension for 2012 Coachmen Clipper
    I have a solution for you, but the Timbren Axle-Less Trailer suspension # TASR5200S05 is not the best option because of the stiffness of the springs that this system uses. The 5200-lb Axle-less system springs are meant to carry a much heavier load than the approximately 2500-lb Coachmen Clipper, and when you use an overrated suspension system you're potentially causing way more jostling, bouncing and in turn, wear and tear on your camper. The Timbren Heavy-Duty Axle-Less Trailer Suspension...
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  • Timbren Axle-Less Suspension Kits with 4-Inches of Lift
    The Timbren axle-less suspension kits are offered in either 4-on-4 or 5-on-4-1/2 bolt patterns; none is available with a 8-on-6-1/2 pattern idler hubs. All such kits are shown on the linked page. Several of these 3500-lb kits, parts # ASR3500S06, # ASR35HDS05 and # ASR35HDS02, offer the 4-inches of lift you want and come without hubs. You can use an idler hub or a hub/drum that takes the same inner and outer bearings.
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  • Recommended 4 inch Lift Spindles or System to Raise Deck Height of Trailer
    For your specific application, we really only have one style of trailer axle and suspension that will work with your spring center to spring center dimensions. It is the Timbren Axle-Less Trailer Suspension System with 4 Inch Lift Spindle. This is available in 2000 lb # ASR2KHDS04, 3500 lb # ASR35HDS05, and 5200 lb # TASR5200S03. These can be used in tandem axle applications as well. Most snowmobile trailers will have a 3500 lbs axle when using 15 inch wheels if you want to be similar...
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  • Trailer Build With Timbren & Dexter Components
    I went to our warehouse and pulled these Timbren Heavy-Duty Axle-Less Trailer Suspension - 4" Lift Spindle - Regular Tires - 3,500 lbs # ASR35HDS05 to measure the spindle for the right hub and drum. You have a couple of options to choose from but the 3,500lb Dexter hub and drum will not work with the Timbren because the heavy duty spindles of the Timbren will not fit the bearings of the Dexter hub. The Timbrens are meant for larger hubs and larger wheels. There aren't any hubs with...
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  • What is the Load Capacity of the Timbren Axle-Less Trailer Suspension?
    The Timbren Heavy-Duty Axle-Less Trailer Suspension - 2,000 lbs # ASR2KHDS01 has a total weight capacity of 2,000 lbs instead of an individual capacity of 2,000 lbs each. For something that will give you greater capacity for your cargo, I recommend the Timbren Heavy-Duty Axle-Less Trailer Suspension - 3,500 lbs # ASR35HDS05. The 3,500 lbs weight capacity of this system will be what allows you to move the cargo you plan to haul. I've added a link to a video review of this product...
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  • Options for Lifting Tandem Axle Horse Trailer for Level Ride
    There are a couple of options for lifting your horse trailer, though there are no kits that provide the 4 inches to 6 inches of lift you are seeking. The highest lift kit for a tandem axle trailer is the 2 inches provided by the Lippert Components Tandem Axle Lift Kit # LC407131. The next option after that is an over/under kit, which is commonly referred to as "flipping the axles." What this does is move your trailer's leaf springs to the top of your axle and lifts your trailer approximately...
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  • Which Hubs/Drum Assembly and Brakes for Timbren Axle-Less Suspension 3500-lbs with 4" Lift
    I may have a solution for you, but there is not a 5 on 5" bolt pattern hub and drum that is going to be compatible with the Timbren Heavy-Duty Axle-Less Trailer Suspension - 4" Lift Spindle - Regular Tires - 3,500 lbs # ASR35HDS05. In order to use your 5 on 5" wheels you would need to get an adapter, which can usually be found via an off-road or auto parts retailer. For a hub and drum assembly that will fit on your Timbren Axle-Less system you can use the Trailer Hub and Drum # AKHD-655-6-EZ-K,...
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Info for this part was:

Expert Research:
Michael H
Expert Research:
Jameson C
Video Edited:
Jacob T
Video Edited:
Kathleen M
Written by:
Laura H
Updated by:
Brian B
Updated by:
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Installed by:
Randy B
Video by:
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