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 - Off-Road Tires - 3,500 lbs

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

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Our Price: $759.00
Trailer Leaf Spring Suspension
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Timbren Trailer Leaf Spring Suspension - ASR35HDS02
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The Axle-Less system provides a smooth, quiet, safe ride and can eliminate the need for an axle, allowing for maximum ground clearance and a low deck height. Suspension units 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 - Off-Road Tires - 3,500 lbs part number ASR35HDS02 can be ordered online at etrailer.com or call 800-298-8924 for expert service.
  • All Info
  • Reviews (136)
  • Q & A (110)
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  • Why etrailer?

Timbren Trailer Leaf Spring Suspension

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

The Axle-Less system provides a smooth, quiet, safe ride and can eliminate the need for an axle, allowing for maximum ground clearance and a low deck height. Suspension units 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
  • 4" Lift, EZ Lube spindles accept trailer 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
  • 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, off-road 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 hub and drum assemblies (8-201-9UC3-EZ)
  • Spindle/hub compatibility
    • Bearings: 25580 inner, 15123 outer
    • Seal: 2.125" inner diameter
  • 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 three ways. First, you can retrofit the trailer with a crossmember. Second, you can build out the trailer frame. Third, you can use 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 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.
  6. The hub is not included with this model.
  7. The built-in hole accepts 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 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



ASR35HDS02 Axleless Trailer Suspension System by Timbren - Without Hubs - Wide Tires - 3500 lbs

Item # ASR35HDS02

Installation Details ASR35HDS02 Installation instructions




Customer Reviews

Timbren Heavy-Duty Axle-Less Trailer Suspension - 4" Lift Spindle - Off-Road Tires - 3,500 lbs - ASR35HDS02

Average Customer Rating:  4.6 out of 5 stars   (136 Customer Reviews)

The Axle-Less system provides a smooth, quiet, safe ride and can eliminate the need for an axle, allowing for maximum ground clearance and a low deck height. Suspension units replace your existing axle and operate independently. Fits any frame width.

- ASR35HDS02
by:

Massively overbuilt and highest quality !! Note that these are HD versions which have 6000lb spindles and use 6000lb bearings, seals and brakes. 602003



- ASR35HDS02
by:

I live in California and I'm building a custom off-road camping trailer for overlanding/camping, mainly for the Sierra Nevada backroads, but possibly for longer trips in a variety of terrain. I had read about the axle-less suspension from Timbren and found that it's a popular choice for these types of trailers. In my searches, etrailer.com came up frequently. So I posted a few questions on their web site, and got a prompt response with tons of great information and a complete parts list for what I needed. Much appreciated! The order handling and shipping was very prompt, and all my parts were shipped in one shipment which I definitely appreciate since I don't get packages delivered to my door. I received all the packages today. Great customer support, prompt handling, and quality products. I gave 4/5 stars because the packaging could have been a little better. One of the boxes was a little banged up in the corners, but the content was unharmed as far as I can tell. I've also received follow-up emails to ensure that I received everything and that it was in good shape. Overall, I'd highly recommend the company, and I won't hesitate to buy from etrailer again! My trailer build will probably take a few months to complete with all the bells and whistles, but I'll be sure to post pictures from the process. 546087



- ASR35HDS02
by:

Great product! 784834



- ASR35HDS02
by:

Great communication and fast shipping, much appreciated will always do business at Etrailer !! 762484



- ASR35HDS02
by:

Looks very heavy duty, should work really great with with the trailer I'm building 350038



- ASR35HDS02
by:

Great service. So far so good. Highly r ecommend 259020



- 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

- 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



- 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

- 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

- 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



- 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



- 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



- A20RS545
by:

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


This is my first time in building something like this 774926



- 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



- 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

- 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



- 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



- 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



- 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


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

- 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


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Ask the Experts about this Timbren Trailer Leaf Spring Suspension

  • Recommended Off-Road Wheels and Tires for Timbren Axle-Less Trailer Suspension
    Thanks for the purchase of the Timbren Heavy-Duty Axle-Less Trailer Suspension - 4" Lift Spindle - Off-Road Tires - 3,500 lbs # ASR35HDS02 with the Dexter Trailer Hub and Drum Assembly # 8-201-9UC3-EZ which will be a great addition for your trailer; we definitely have wheels and tires that will be a perfect match. You will need a wheel with a matching 6 on 5-1/2" bolt pattern and I also recommend going with a bias tire because they have stiffer sidewalls than radial tires, meaning it...
    view full answer...
  • Timbren 3.5K Axle-Less System with 4 Inch Lift and Offroad Tires and Matching Hubs and Brakes
    Considering the size tires you are wanting to put on the trailer you would need to go with at least a 3,500 pound Timbren Axle-Less system such as # ASR35HDS02. The hub and drum assembly for this system is # 8-201-9UC3-EZ. For the brake assemblies use set # AKEBRK-7-SA. These are self-adjusting brakes, one left and one right. You will likely not be able to match up the bolt pattern between the trailer wheels and the Toyota wheels. Vehicle wheels also often have an offset whereas...
    view full answer...
  • What Hub Has a 5 on 4 1/2 Bolt Pattern That Works with Timbren Axle-Less Systems
    If you want the Timbren axle-less system that works with 5 on 4.5 bolt pattern hubs, you can use # ASR1THDS01. This kit is specifically designed for 1-axle and 2-axle trailers that use low-pressure, off-road tires. It has greater distance between hub face and trailer frame to accommodate off road tires. The Kit you are referencing # ASR35HDS02 works with Dexter 6,000 lbs hub and drum assemblies that come with 5 spoke utility, 6 on 5 1/2 or 8 on 6 1/12 bolt patterns. The hubs and drum...
    view full answer...
  • Brake and Hub Parts Needed for 4" Lift Timbren Heavy-Duty Axle-Less Trailer Suspension
    The correct braking system to use with the Timbren Heavy-Duty Axle-Less Trailer Suspension - 4" Lift Spindle # ASR35HDS02 includes the Electric Trailer Brake Kit # AKEBRK-7-SA and 2 of the Trailer Hub and Drum Assembly # AKHD-655-6-EZ-K. Since you're wanting to use tires to match your Jeep with a trailer application there are a few problems with this setup; the hub/drum isn't compatible with 17" tires, plus for a trailer application using this size means all of the hubs have a 6-bolt pattern...
    view full answer...
  • Timbren Axle-Less Kit with Electric Brakes for 4 Inch 3500 lb Lift Spindle
    The Timbren kit you are seeking with everything all together with the lift spindle doesn't currently exist. I can help you get all the parts you need however for the equivalent to what that kit would include. Here is what you need: -Timbren Heavy-Duty Axle-Less Trailer Suspension - 4" Lift Spindle - Off-Road Tires - 3,500 lbs # ASR35HDS02 -Electric Trailer Brake Kit - Self-Adjusting - 12" - Left and Right Hand Assemblies - 5.2K to 7K # AKEBRK-7-SA -Dexter Trailer Hub and Drum Assembly...
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  • Can Wheels with Bolt Pattern of 6 on 5-1/2 inch Install on Timbren Axle Less Kit # ASR35HDS02
    While we can't recommend you use vehicle wheels on a trailer axle like the Timbren Axle Less kit part # ASR35HDS02 the recommended hub for this kit part # 8-201-9UC3-EZ does have the correct bolt pattern for the wheels you mentioned and this kit is a really great option for off-road trailers. For brake assemblies then you'd want the part # AKEBRK-7R-SA and # AKEBRK-7L-SA and you'd have a set of self adjusting brake assemblies that fit the hub and you'd be set.
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  • Timbren Axle-Less System Compatible with 5 on 5 Inch Bolt Pattern
    To get the 5 on 5 bolt pattern, you will need the Trailer Idler Hub Assembly for 3,500-lb Axles - 5 on 5 - Pre-Greased # 84550BX or the Dexter Trailer Hub and Drum Assembly for 3,500-lb E-Z Lube Axles - 10" Diameter - 5 on 5 # 84556UC3-EZ and brake assemblies # AKEBRK-35-SA. These options work with the Timbren Heavy-Duty Axle-Less Trailer Suspension - 4" Lift Spindle - Wide Tires - 2,000 lbs # ASR2KHDS03. Timbren Heavy-Duty Axle-Less Trailer Suspension - 4" Lift Spindle - Off-Road...
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  • Can the Timbren Heavy-Duty Axle-Less Trailer Suspension System Be Used With 33 Inch Tires
    The Timbren Heavy-Duty Axle-Less Trailer Suspension System part # ASR35HDS02 can be used with larger tires yes. In fact, the spindles are actually longer and there is an integrated lift which are both designed to allow for more clearance so you can use larger tires. That said, there are a few factors that go into deciding the max tire size. In regards to max diameter, this will be determined by measuring from the center of the spindle to the bottom of the fender. In regards to max width,...
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  • 3,500 lb Timbren Axle Less Kit with 4 inch Lift Recommendatio for Trailer
    We can certainly help you pick out a 3,500 lb Timbren kit with a lift kit like the part # ASR35HDS02 which fits the bill. But the only way this would increase your trailer's weight capacity is if this was the limiting factor for your trailer's current capacity. You're only as strong as your weakest component so you'd need to verify that everything else on your trailer is rated for 3,500 lb to ensure you'd get the full capacity of this kit. This also has a 4 inch lift like you wanted...
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  • Recommended Hubs and Brakes to Build Offroad Trailer with Timbren Axle-Less Trailer Suspension
    Generally, it is not recommended to use automotive tires on a trailer application, with the only exception being LT tires. Based on the information I was able to find, it looks like you're in luck because that's exactly what your BFGoodrich Mud Terrain T/A KM tires are so you should have no problem using those to build your off-road trailer. That being said, the 5 on 5 bolt pattern poses a problem since there are no hub/drum assemblies compatible with the spindles used on the Timbren...
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  • Recommended 6-Lug Idler Hubs for Timbren Heavy-Duty Axle-Less 3.5K 4" Lift Suspension
    The correct idler hubs to use with the Timbren Heavy-Duty Axle-Less Trailer Suspension part # ASR35HDS02 that have a 6 on 5-1/2" bolt pattern is part # 8-213-5UC1-EZ.
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  • Replacement Leaf Springs for Triple Axle Boat Trailer with 3500-lb Axles
    The Timbren axle-less suspension systems like # ASR35HDS02 cannot be used in triple-axle configurations so they would not work for you. The linked page displays double-eye leaf springs for 3500-lb axles. These are available in three eye-to-eye lengths, 23-1/8, 25-1/8 and 27-inches. Please note that a well-worn spring tends to elongate, so when you remove the two leaf springs from the axle to measure them keep in mind that those springs, when they were new, could have been shorter than...
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  • How to Use Jeep Wheels with a Timbren Axle-Less Trailer Suspension System
    I do have an option for you but we do not offer a trailer hub with 5 on 5" bolt pattern that will fit the Timbren Heavy-Duty Axle-Less Trailer Suspension part # ASR35HDS02 or part # TASR5200S03. Instead, you will want to use the Timbren Axle-Less Trailer Suspension System part # ASR3500S06 with the Trailer Idler Hub Assembly part # AKIHUB-550-35-EZ-K as this will allow for the 4" lift with 5 on 5" bolt pattern. I have attached a photo of the tire clearance dimensions for the Timbren...
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  • Timbren Axle-Less Suspension System Compatibility with Aluminum I-Beam Trailer Frame
    The Timbren Heavy-Duty Axle-Less Trailer Suspension - 4" Lift Spindle - Off-Road Tires - 3,500 lbs # ASR35HDS02 is compatible with I-beam frames and in tandem axle configuration. Due to the Aluminum frame, I recommend putting a thin rubber pad between the steel mount and the aluminum I-beam. The powder coat on the steel should keep the two dissimilar metals from galvanic corrosion, but a thin rubber pad would drastically increase this safety. Zinc plated hardware will work well with...
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  • Electric Brakes with Parking Brake Option For Timbren Axle-Less Suspensions
    The Timbren Axle-Less Suspension, # ASR35HDS02, are designed to be used with 12 inch brakes. Timbren does offer an axle set # ASR3500S06 that will allow you to install 10 inch electric brakes. These axles are rated a 3,500 lbs, but do not have the heavy duty design like # ASR35HDS02 and the 10 inch brakes do not have a parking brake included. Parking brakes are available on 12 inch brakes rated for 6,000 lbs axles. For 10 inch brake assemblies I recommend the Electric Trailer Brake...
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  • Mounting and Installation Details of Timbren Axle-Less Trailer Suspension # ASR35HDS02
    The Timbren Heavy-Duty Axle-Less Trailer Suspension - 4" Lift Spindle - Off-Road Tires - 3,500 lbs # ASR35HDS02 is a great product made by Timbren. It is a universal fit product that uses aeon rubber springs as shock absorber suspension. This system allows up to tandem axle applications but does not work for triple axles. It allows you to use an existing cross brace as the support or you can add a 2 inch square bar into the integrated holes to allow for the connection bracing. This...
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  • Recommended Axles For Travel Trailer With 68-1/4 Inch Spring Center To Spring Center Measurement
    You do have some odd measurements. You can absolutely use the parts that you mentioned and drastically change all of your trailer connection points (Plan A), however, I recommend doing something much easier and cleaner. It won't require finding new connection points for your springs, building outer wells, or adding different springs. So consider this Plan B. We have the Timbren Heavy-Duty Axle-Less Trailer Suspension - 4" Lift Spindle - Off-Road Tires - 3,500 lbs # ASR35HDS02. ...
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  • Availability of 3500 lb Timbren Axle Less Kit with 4 inch Lift
    Timbren does make a 3,500 lb version of their axle less systems that has a 4 inch lift built into it. For that you'd want the part # ASR35HDS02. This is basically exactly what you listed wanting so this would be a great solution for you.
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  • Off Road Timbren Axle Less Recommendation that Can Be Used with Jeep Bolt Pattern
    The part # ASR35HDS02 only has hubs with 6 lug patterns and up since it's a higher rated system. It's odd because the axle is 3,500 lb rated but designed for 6k rated hubs. Isn't the 5 lug pattern you mentioned the Jeep bolt pattern? Typically the Jeep wheel bolt pattern is 5 on 5 inch. For an idler hub that will fit the spindles of the part # ASR1THDS03 and have the correct bolt pattern we have the # AKIHUB-550-35-K. This is a 3,500 lb trailer hub. For a hub drum we have the # AKHD-550-35-EZ-K. The...
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  • What Hubs Will Work with the Timbren Heavy-Duty Axle-Less Trailer Suspension Part # ASR35HDS02
    The Timbren Heavy-Duty Axle-Less Trailer Suspension part # ASR35HDS02 uses a 25580 (1.750") inner bearing, 15123 (1.250") outer bearing, and 10-10 (2.125") grease seal. As long as the hub you are wanting to use has these bearings/seals then yes it will work for you. The bearing numbers should be stamped into the bearing but if not you can use a digital caliper like part # PTW80157 to measure them. If you are looking for just an idler hub and your wheels use a 6 on 5-1/2" bolt pattern,...
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  • How to Pick Spindle Drop, Lift or Straight for Timbren Axle Less System
    The style of spindle needed will be determined by what height would work the best. The drop spindles of # A35RD545 will put the axle center 1/4 inch below the bottom of the trailer frame. The 4 inch lift part # ASR35HDS02 will have that distance at 7-5/16 inch. The straight spindle part # A35RS545 will have that dimension right at 4 inches. I attached a diagram of this kit that shows the spindle height of 4 inches.
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  • Recommended Hub/Drum and Idler Hub for Timbren Axle-Less Suspension # ASR35HDS02
    For a brake drum hub, Timbren recommends the # 8-201-9UC3-EZ from Dexter Axle, which features a 6 on 5-1/2 bolt circle. For an idler hub, go with the # AKIHUB-655-6-EZ-K. Both hubs use the # 25580 inner and # 15123 outer bearing, which is compatible with the spindle used by the Timbren # ASR35HDS02 axle-less suspension you referred to. If you go with the hub/drum, you'll also need a brake assembly. I recommend going with a Nev-R-Adjust assembly, like # 23-459 for the right side and...
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  • Recommended Electric Brakes For Timbren Axle-Less System And Dexter Trailer Hub/Drum
    The electric brakes I recommend to use with the Trailer Hub/Drum, part # 8-219-50 and the Timbren Heavy-Duty Axle-Less Trailer Suspension, part # ASR35HDS02 is the Dexter 12 inch Nev-R-Adjust Electric Brake Assembly, part # 23-459 for the right hand side. For the left hand I recommend part # 23-458. The mounting hardware for the brake systems is not included. You will need part # 38LW, part # 38N, and part # 7-5. For each brake you will need 5 of each.
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  • Off Road Axle Recommendation for Trailer for 8 on 6-1/2 inch Bolt Pattern Hub
    The Timbren Heavy-Duty Axle-Less Trailer Suspension # ASR35HDS02 will be perfect for you. It's got a 4 inch lift built into it and is set up for wider tires so it's ideal for off-road applications. And then for a hub with the 8 lug pattern that you need you would want the part # 42865-KIT that you referenced.
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  • Recommended Compatible Hubs for Use with Timbren Off-Road Suspension System ASR35HDS02
    In order to use 6-on-5-1/2-inch bolt pattern hubs on a Timbren axle-less suspension system those hubs will have to use the same bearing set as the hubs intended for that system. In the Timbren system # ASR35HDS02, for example, which has 4-inches of lift and is rated for 3500-lbs and off-road tires, the bearing set is inner bearing # 25580 and outer bearing # 15123. We do offer idler hubs and hub/drums in the 6-on-5-1/2-inch bolt pattern that you can see by clicking on the link provided....
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  • Hub/Drum Recommendation with 8 on 6.5 Bolt Pattern for Use with Timbren Axle Less ASR35HDS02
    For a hub/drum that fits the Timbren Kit part # ASR35HDS02 and will give you an 8 on 6-1/2 inch bolt pattern we have the part # 8-219-4UC3-EZ which will work well. These are sold individually so you need a quantity of 4 of these. These are EZ lube hubs. For brake assemblies you need 2 of the # AKEBRK-7R-SA for the right hand side and 2 of the # AKEBRK-7L-SA for the left hand side.
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  • Recommended Options for 3,500 lb Trailer Axles With Lift
    For the Timbren Heavy-Duty Axle-Less Trailer Suspension - 4" Lift Spindle # ASR35HDS02 there is not a fit for the 5 on 4-1/2 inch bolt pattern. These spindles are thicker and require a larger capacity hub and drum than traditional 3,500 lb axles. The Dexter Trailer Hub and Drum Assembly - 5,200-lb and 6,000-lb E-Z Lube Axles - 12" - 6 on 5-1/2 # 8-201-9UC3-EZ is the correct fit along with the brake assemblies # AKEBRK-7-SA. To use this system you will need to change your wheels...
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  • Hub Drum Recommendation for the Timbren Axle Less System Part # ASR35HDS02
    The recommended hub and drum for the Timbren Axle Less system part # ASR35HDS02 that you referenced is the part # 8-201-9UC3-EZ which also has a 6 on 5-1/2 inch bolt pattern. For brake assemblies you would want the part # 23-459 for the right hand side and part # 23-458 for the left hand side.
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  • Availability of Independent Suspension Trailer Axle Kit for Off-Road Trailer with 6 Lug Hub
    Sounds like you may be looking for an axle kit like the Timbren Axle-Less part # ASR35HDS02. This is a 3,500 lb axle setup that has a 4 inch lift built into it and is spaced out for off-road tires. For an idler hub that fits it with a 6 on 5-1/2 inch bolt pattern we have the part # AKIHUB-655-6-K.
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Info for this part was:

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