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  1. Trailer Axles
  2. Timbren
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  4. Universal Fit
  5. Rubber Spring Suspension
  6. Spindles Only
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: $1,214.07
Trailer Axles
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Shipping Weight: 150 lbs
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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 axles 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 800-298-1624 for expert service.
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  • Reviews (202)
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Timbren Trailer Axles - TASR7KS01

  • 7000 lbs
  • Universal Fit
  • Rubber Spring Suspension
  • Spindles Only
  • Timbren
  • Easy Lube Spindles

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




Customer Reviews

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

Average Customer Rating:  4.7 out of 5 stars   (202 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:

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.



- TASR7KS01
by:

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



- TASR7KS01
by:

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



- TASR7KS01
by: 04/14/2022



- TASR7KS01
by:

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



- ASR3500S06
by:

Review from a similar Axle-Less Suspension in Trailer Axles


The trailer rides great down the road and no more worries about saltwater and rusty leaf springs. Not a cheap option but I’m very happy with the setup. When installing, just be sure to measure accurately and have sharp drill bits. A drill press type of guide also helps ensure correct drilling angles. The first picture is of a mounting gusset a local welding shop made. One is needed for each side and necessary to provide needed mounting strength-at least on my trailer frame. Pics 2 and 3 show the mounted suspension on one side of the trailer. Pic 4 shows the suspension on one side of the trailer with the axle attached and a separately purchased disc brake assembly mounted on it. Finally, pic 5 shows a 2” box channel between both suspension assemblies. Independent suspensions would have been nice, but I wanted to ensure trailer rigidity was maintained. So, after one year, so far, so good. It’s all smooth sailing down the highway.


Comments
Actually over a year, and still working great.
dale - 04/22/2022


- ASR3500S05
by:

Review from a similar Axle-Less Suspension in Trailer Axles


Trailer suspension and disk brake performance is outstanding big big difference over leaf spring and electric drum brakes. Installation required modifications to the frame to monut the timbren suspension


Comments
The Timbren axle less suspension and Disk brake and disk brake controller system is still work great. will never go back to drum brakes or leaf spring axle suspension.
Quintin - 01/06/2022


- TASR7KS02
by:

Review from a similar Axle-Less Suspension in Trailer Axles


They have more pros than cons, but the second set I bought broke the flat plate that holds the spindle at about 8 months. The steel quality seemed less than I would expect since it basically peeled it back like a pop can as you can see in the pictures. Otherwise I like the clearance and ride. They last 2-3 years where the torsion axles I replaced would wear out in 4 months after driving down rough gravel roads. There is a grade zerk on the underside which I didn't realize until I bought the second set. That would have helped the first set last longer had I known about it.


Comments
The Timbren Axle-Less Trailer Suspension - 4 Spindle w Brake Flange - Regular Tires - 7K Part # TASR7KS02 has a 3-year limited warranty. I will have Customer Service reach out to you.
-- Etrailer Expert Thomas M - 12/22/2021


- A20RS545
by:

Review from a similar Axle-Less Suspension in Trailer Axles


I used these axles in a different way than most would. I needed a trailer that was small, could handle tight switch-backs, carry 600 lbs and be light. I had this idea and as a retired design engineer I saw a great possibility in this axle. I have made four of these trailers now, one as a camp trailer, 2 for trail work for State Parks and one as a utility trailer.


Comments
Really cool work!
-- Etrailer Expert Sierra K - 07/07/2021


- A20RS545
by:

Review from a similar Axle-Less Suspension in Trailer Axles


I am not a mechanic so Brandi was real helpful. Had to get some professional help to remove the old suspension and install the new suspension. The only drawback we ran into was the spindle did not extend out far enough to mount the tires in the normal way. We had to put the tires on backwards. It all worked out beautifully. Towed the trailer for over 1700 miles without any problems. Brandi was delightful to talk with and very patient with me. Her help was most appreciated. Sorry, I didn't take any pictures.


Comments
good
R C - 12/19/2021


- TASR5200S03
by:

Review from a similar Axle-Less Suspension in Trailer Axles


Very exicited about these axels, I have been eyeing these for over a year. (Excellent service from etrailer, they had my parts to me in 1 day from the time of placing the order.) These axles seem to be well made and fit nicely with the Dexter hub and drum assembly and the 12" electric brake kit. I installed this all on a M1101/M1102 trailer frame after removing the factory axel assembly. I have not ran these on the road or off as of yet but will give another review at that time. The fit and finish are great and the packaging was good, a little banged up from shipping (missing 1 washer)



- ASR3500S06
by:

Review from a similar Axle-Less Suspension in Trailer Axles


A must have suspension if you're building an off-road trailer!


Comments
Its been a year and this suspension is still doing great!
David R - 09/27/2021


- A12WS545
by:

Review from a similar Axle-Less Suspension in Trailer Axles


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!


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



- A35RS545
by:

Review from a similar Axle-Less Suspension in Trailer Axles


I rebuilt a 4 x 8 trailer using the Timbren Axle-Less Trailer Leaf Spring Suspension and it works great. I would recommend it to others.


Comments
Working out just fine.
David J - 09/25/2020


- ASR3500S05
by:

Review from a similar Axle-Less Suspension in Trailer Axles


Timbren saved our RV road trip! The leafs on the axle on our 2018 Jayco TT came apart while driving in Maryland. We tried going to the manufacturer, but they were useless. Going to a RV mechanic meant being grounded for at least 2 months. Then we found Timbren. With the help of Timbren's excellent staff we purchased axle-less system through etrailer, who made sure we got as quick as possible. It came ahead of schedule, my husband installed the Timbren system and we were back on the road! The axle-less system is better than the original manufacturers. If you plan on taking your RV or TT farther than 100 miles GET THIS INSTALLED and get it through etrailer.



- A4WS440
by:

Review from a similar Axle-Less Suspension in Trailer Axles


Pleased with ETRAILER, will order here again. Not as happy with the torsion axle setup. 2 inch square opening for tying both axles together with your own 2" square tubing are not shaped to match 2x2x1/8 tubing. Grinding and welding of tubing required to make it fit. Also found the overslung stub axle left the end of the pivot arm without much ground clearance though the unit was intended and spec'd for atv tire off road use. A pivot arm with mounting pads top and bottom would be better and allow the user to choose high or low clearance use. I found the units were perfectly suited to offroad use once I fabricated new mounting pads and welded them to the bottom of the arms.


Comments
After a year of off road use, I couldnt be happier. My trailer rides smooth loaded or unloaded. No of that bunny hopp with leaf springs or rigid mount axles. The small rebound control snubber works perfectly! I modified my components for high clearance but the concept is sound, they work well. Great job Timbren!
Doug F - 06/22/2017



- TASR5200S03
by:

Review from a similar Axle-Less Suspension in Trailer Axles


This is as close to a bulletproof suspension as they come. We use this suspension on all of our VORSHEER XOC trailers. They have performed flawlessly as an off-road suspension.



- ASR1200S04
by:

Review from a similar Axle-Less Suspension in Trailer Axles


The order came in on time and the customer service at etrailer.com (Ashley) and Sean from Tmbren was outstanding. They both were very helpful in my choosing the right product for my needs. The axle less suspension's performance is absolutely superb. It vastly improves ride quality. I am using it on a teardrop camper that often goes on gravel roads and the raddling sound from the leaf axles was horrible. A couple of points to consider before you settle on the axle less suspension: keep in mind that you will lose some hight of the trailer. While you will gain clearance from the lack of the axle, the suspension will make the trailer sit lower than before.i had to lower my hitch by an inch to maintain the trailer leveled. Also it does appear to compress at higher rate than the leaf springs, which makes it softer but easier to reach it's limit. Overall this product is absolutely a must if you are looking to improve the safety and the quality of your towing.



- A20RS545
by:

Review from a similar Axle-Less Suspension in Trailer Axles


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.



- TASR5200S03
by:

Review from a similar Axle-Less Suspension in Trailer Axles


I installed these on my single axle travel trailer to replace the axle and leaf springs. Weight savings was a wash with the required steel tube for added stability. I installed on an I-Beam using aluminum plate as a spacer. It took my friend and I 3 days to install everything. The hardest part was rerouting my black pipe propane line. I also had to install it just back of center due to a steel cross beam being in the way of the middle bolt hole. I replaced the brakes and hubs as well as the wheels to match the new hubs. Overall we've been super happy with this upgrade. The trailer rides a lot smoother. I'm not finding random screws on the floor after a long bump ride. We decided to do this after our leaf spring broke 2 times, 12k miles between. We were done dealing with a subpar suspension. I probably would not recommend doing this if your leaf springs are working for you. We put a lot of miles on our trailer. We aren't weekend campers.



- ASR3500S06
by:

Review from a similar Axle-Less Suspension in Trailer Axles


Best suspension you can get for off-road trailers. We use this suspension on all of our VORSHEER XER trailers.



- ASR35HDS05
by:

Review from a similar Axle-Less Suspension in Trailer Axles


Fast service from etrailer sending me my Timbren kit. They are always very helpful. Unfortunately it looks like UPS mishandled one of the 3 boxes and had to re-tape it all over. I just rcv'd the shipment, so I will have to open the box when I get home and make sure everything is inside. This is no fault of etrailer, just the shipping companies these days.


Comments
I will have our customer service team reach out to you.
-- Etrailer Expert Jenny N - 11/21/2021


- A20RS545
by:

Review from a similar Axle-Less Suspension in Trailer Axles


Needed a suspension system that I could make a low profile kayak trailer, that would fit in a specific area next to my garage. These were excellent that I could make the trailer any width I wanted. Easy to install and well made.



- A35RD545
by:

Review from a similar Axle-Less Suspension in Trailer Axles


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!!!



- ASR1THDS01
by:

Review from a similar Axle-Less Suspension in Trailer Axles


After a great deal of research, I ultimately chose the Timbren long arm kit to replace the torsion axle under my teardrop trailer. My initial impression is that there is simply no comparison between the two. It now rides better, pulls better and handles better than I could have imagined. The Timbren axle system is incredibly well built and is much more confidence-inspiring. While the spring rate closely matches my trailer weight, the components are much more rugged and robust. The spindles, bearings and brakes are rated at double the capacity of my old axle which gives me great peace of mind. I pull my trailer, both on and off road, anywhere it will fit and the long travel and heavier components are a game-changer for my travels. Installation, while requiring a bit of forethought, was otherwise straightforward and methodical. Documentation available from etrailer and Timbren, is second to none. Instructions were clear and concise with drawings and detail taking the major guesswork out of the equation. Even though, due to the odd frame design of my trailer that required a bit of work to adapt, I ended up making some frame stiffeners, the adaptation was as simple as it could possibly be. I've ordered from etrailer in the past and they were 100% accurate on this order as well. I ordered the Timbren kit without backing plates and hubs due to the requirements of my trailer and etrailer suggested, explained availability and supplied all of the components I needed. They truly a stress-less bunch of folks with an extraordinary website. I'll no doubt turn to them again...


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Ask the Experts about this Timbren Trailer Axles



  • 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...
    view full answer...
  • What is Difference Between Timbren Axle Less Kits TASR7KS01 and TASR7KS02
    The difference between the two kits is that the Timbren Axle Less kit part # TASR7KS01 is a standard height kit where the axle center would be 3-1/2 inches below the trailer frame and the # TASR7KS02 has a 4 inch drop which puts it's axle center right at 1/2 inch above bottom of trailer frame. The bolt pattern of a 3 year old Dexter setup is going to be current as trailer bolt pattern standards haven't changed.
    view full answer...
  • Does the Timbren Axle-Less System part # TASR7KS01 Come As a Pair for Both Sides of Trailer
    The Timbren Axle-Less System part # TASR7KS01 is sold as a pair that includes both sides of your trailer. The price for the system is attached at product link. I also attached a link to our Lowest Price Pledge page as well for you to 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...
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  • 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...
    Image 1 for
  • Can 7k Rated Timbren Axle Less System Attach to I-Beam Trailer Frames
    For your current axle weights the 7k rated Timbren Kit part # TASR7KS01 would be what I would recommend for your trailer. Installation on I-Beam trailer frames is possible but will require you to basically box off the open end of the frame where the system will install so that it has something to install on.
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  • Largest Capacity Axles Available For Roll-Off Trailer
    The Timbren Axle-Less Trailer Suspension System - Spindle w/ Brake Flange - Regular Tires - 7K # TASR7KS01 are the largest capacity axles we carry, but they can be used in tandem axle applications giving you a 14,000 lb total capacity. They cannot be used in triple axle applications, so that will be the max capacity we can offer.
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  • 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...
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  • 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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  • 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 listed...
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  • 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.
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  • Is Trailer Weight Capacity a Combination of Both Axle Weight Capacities
    Yes, the weight capacity of your trailer will be the weight capacity of all of your axles combined whether you have single, double (tandem), or triple axles. Even though the common axle capacity for a 3 inch diameter axle is 6,000 - 7,200 lbs, you will still need to check your axle for a sticker or stamp that states the actual capacity. The common axle capacity is just that, common, there are other possible axle situations out there as well. You will want to check for any indications...
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  • 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 with...
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  • 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...
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  • Actual Weight Of Timbren Axle-Less Trailer Suspension System # TASR7KS01
    I contacted Timbren who confirmed the actual weight of the Timbren Axle-Less Trailer Suspension System # TASR7KS01 kit minus the packaging is 158 lbs. Compared with full axle kits, yes that is a significant weight difference. Included is a video resource with additional informaiton from here.
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  • How Do I Determine the Axle Spacing on My Trailer
    I can tell you how you can measure this, but unfortunately we don't have a database with that type of information on each specific trailer. Because of the varying weights on different trailers you can get different measurements between the axles and they won't always be 33" or even 35"; I've seen some that are different depending on the size of the trailer. To find the axle spacing on your 2003 Forest River Cedar Creek, all you really need to do is measure the distance between the two...
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  • Compatibility of Installing the Timbren Axle-Less Suspension System on an Aluminum Trailer Frame
    The Timbren Axle-Less Suspension System, # TASR7KS01, is compatible with aluminum trailer frames. I recommend that when installing the system that you use rubber shims the fit between the steel of the Timbren axles and the aluminum frame to prevent galvanic corrosion. The included hardware will work for the steel on aluminum application. The Timbren system will give you more under trailer clearance due to no axle tube under the trailer. The Timbren system's AEON rubber spring technology...
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  • Replacement for a 6,000 Pound Trailer Axle
    We have a solution that may work for you but we don't currently carry any 6,000 pound axles with those measurements. Instead, you might take a look at the Timbren axle-less systems. They're a universal fit and include the suspension as well. We have part # TASR7KS01 that's rated up to 7,000 pounds. I've linked a video for you to take a look at.
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  • Why Should Timbren Axle Less System be Used on Triple Axle Trailer
    Timbren Axle Less systems like the part # TASR7KS01 that you referenced shouldn't be installed on triple axle trailers because they scrub tires pretty hard around corners which can put quite a bit of lateral force on the sides of the axle assemblies. The Timbren axles just are not rated to withstand that amount of force in that direction. Leaf spring suspension setups tend to handle the lateral force better which is why they are better for triple axle setups.
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  • Why Can't Timbren Axle Less Systems be Used in Triple Axle Setups
    Timbren doesn't recommend using their Axle Less systems on triple axle trailers due to the scrubbing of the wheels around corners and the lack of equalizers which means that over bumps at any given time one of these could be carrying the full weight of the trailer instead of at least distributed to the other side of the axle and other axles as well through the equalizer systems.
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  • How Much Does the Timbren 7K Axle-Less Trailer Suspension System Weigh
    The Timbren Axle-Less Trailer Suspension System part # TASR7KS01 that you referenced has a shipping weight of 148 lbs. They are shipped using standard UPS methods.
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  • Can 7K Timbren AxleLess Replace Axle with Frame Clearance Issues
    The Timbren 7k Axle Less kit part # TASR7KS01 that you referenced would fit without clearance issue since it attaches to the side of the trailer frame and then puts the spindle at a distance away from the trailer frame that would not cause issue. As far as a straight axle to replace what you have you'd have to measure from hub face to hub face and then add in the additional clearance you'd need.
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  • Why Can't Timbren Axle-Less Suspension be Used for Triple Axle Trailer Application
    The side loads for turning will tear up the bushing on the Timbren Axle-Less Trailer Suspension System # TASR7KS01 if it were used for a triple axle setup. I reached out to my contact at Timbren who gave me this information. If you are wanting to add another axle to your trailer you need to stick with a traditional setup which will require you to reconfigure hanger locations and where your axles sit. I have attached a link to a helpful article regarding adding axles to a trailer as well...
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  • How Do I know When Trailer Is Misaligned
    There is not really a specific that will tell you when you will start having trouble when your trailer is misaligned. You will notice most of the issues in your suspension components like elongated holes in your shackles. You can also experience uneven tire wear after a while. There is not really a way to fix it besides mounting the axle square with the coupler on your trailer.
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