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  1. Trailer Axles
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  3. 3500 lbs
  4. Universal Fit
  5. Spindles Only
  6. Rubber Spring Suspension
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

Item # ASR35HDS02
Our Price: $1,223.79
Trailer Axles
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Shipping Weight: 149 lbs
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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. Great Prices for the best trailer axles 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 or call 1-800-496-5010 for expert service.
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Timbren Trailer Axles - ASR35HDS02

  • 3500 lbs
  • Universal Fit
  • Spindles Only
  • Rubber Spring Suspension
  • No Hubs
  • Timbren
  • Lift - 4 Inch
  • Easy Lube Spindles

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.


  • 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 long 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


  • 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


  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

Installation Details ASR35HDS02 Installation instructionsAlternate Instructions ASR35HDS02 Installation instructions

Customer Satisfaction Score:

Customer Reviews

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

Average Customer Rating:  4.7 out of 5 stars   (60 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.


Arrived in time and no issues


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, 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.


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


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


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


Great service. So far so good. Highly r ecommend


Great product!










Review from a similar HD Axle-Less in Trailer Axles

Here are some pictures of my Timbren axle installation. I used a 2000#
axle and a 3500# spindle combination. I am running a original 14" tire.
It was a moderately easy installation.


Review from a similar HD Axle-Less in Trailer Axles

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.

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


Review from a similar HD Axle-Less in Trailer Axles

Used this on a camping trailer behind our Jeep. The suspension handled 1000 miles of washboard gravel roads and mild rocky offroading with ease. We don't drive gently and had the trailer airborne at one point. The brackets that we opted to fabricate for them were straightforward and simple to install. I especially like the ground clearance under the trailer that you gain due to the lack of a solid traditional axle. The ride quality overall was excellent, especially given where we took it. In hindsight we should have gotten the 4" travel version as it may have been able to soak up deep ruts at 40mph a bit better. Only mild complaint is that the powdercoating on the leading edges had already begun to flake off when we received the suspension. I hit it with a can of spray paint, but I would have hoped it would be more durable. Overall, I will definitely be purchasing this axle-less suspension again for my next trailer build.

Ashley, the 4 version doesnt actually give it more travel. Its the same was the standard or the system as far as suspension travel. What the 4 system does it lift the height of the trailer from the ground, depending on what youre doing with the trailer. For an off road trailer I personally would do the 4raise for added ground clearance, just gotta make sure the trailer doesnt get top heavy. The standard system is good for pretty much all uses and the system is for when you need a really low deck height for a lawn mower or go kart for example. I appreciate your review as I am going to be building a small off road campingbug-out trailer to tow behind my lifted FJ cruiser. I havent decided if I am going to go with the standard height or the 4 lift as I am going to be running the same off road tires toyo RT that I have on my FJ on the trailer and I want the trailer to sit around the same height. Did you add brakes to yours? Im planning on either running electric brakes or if available in am going to run surge brakes.
-- comment by: Michael - 01/15/2016
Michael, My trailer was so light even fully loaded that I didnt see the need for brakes and never missed having them.I stand corrected: We did get the 4 lift, but the non-HD instead of the HD because the specs said that it had a bit more travel. and we didnt need the weight capacity. That being said, Im still happy with how this suspension performs. My trailer is on 31s on a stock Cherokee.
-- comment by: Ashley - 01/18/2016


Review from a similar HD Axle-Less in Trailer Axles

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!

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
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


Review from a similar HD Axle-Less in Trailer Axles

Looks like a great product but the Machining of the parts that need to be bolted together don't fit right...The spindle assembly doesn't match up with the Suspension assembly so I will need to grind of some metal that should have been taken care of at the factory in order to mate the two pieces together proper and flush with each other. Seems to me Timbren needs to preassemble their parts to make sure they are going to mate together properly. I'll fix it myself because other than that it seems like exactly what I need. No fault of etrailer but Timbren dropped the Ball on this one.


Review from a similar HD Axle-Less in Trailer Axles

Timbren have worked great I would buy again, have to give etrailer a very bad grade on service


Review from a similar HD Axle-Less in Trailer Axles

These axles have been awesome! I put them on a teardrop camper I built and they are great. I was able to easily adjust the camber and toe once weight was loaded on. They also have very high ground clearance which is great for overlanding.


Review from a similar HD Axle-Less in Trailer Axles

I love these. 30k miles and still going. Almost 1k offroad and they're still holding up. Fully loaded my overlanding trailer weighs 2k lbs, empty 1360 lbs. They did settle a little, but I just raised my fenders a little.


Review from a similar HD Axle-Less in Trailer Axles

There were no instructions included, but not really necessary. Installation is very straight forward. I have not pulled the trailer since installation, but all components fit very well and I am sure it will be an improvement.


Review from a similar HD Axle-Less in Trailer Axles

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...

Show More Reviews

See what our Experts say about this Timbren Trailer Axles

  • Suspension System Recommendation for an Off-Road Tear Trailer that is Breaking Leaf Springs
    I have a solution for you, but the leaf springs we sell aren't rated for off-road use. That's why you are snapping springs. Off-road conditions are just too rough for trailer springs designed for on-road use. Instead you would want the Timbren Heavy-Duty Axle-Less Trailer Suspension - 4" Lift Spindle - for Off-Road Tires # ASR35HDS02 to add a 4 inch lift, or part # ASR35HDS01 for a straight axle. Both of these are designed for what you are doing and are made to accommodate wider tires...
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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.
    view full answer...
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  • Dimensions of Crossbeam Needed When Installing Timbren Axle Less Kit # ASR35HDS02
    I checked with Timbren to see if they could get an exact hole diameter and they said that you could drill holes as needed or weld them to install. A specific hole diameter was not available unfortunately. I asked about the beam dimensions though and they recommended 2 x 3 x 1/4" so what you have now would be great.
    view full answer...
  • Which Timbren Axle Less Kit for Off-Road Trailer
    For an off-road trailer the best option is one with a lift built into it and also with spindle dimensions that allow for wider tires like the Timbren kit part # ASR35HDS02 that you referenced. We do have to recommend you stick with trailer tires and wheels though as truck wheels/tires aren't rated for trailer use and often times have offsets that don't work well on trailer applications.
    view full answer...
  • Is The Dexter Idler Hub For 5200lb Axles Compatible With The Timbren Heavy Duty Axle-Less 4 Spindle
    The Timbren Heavy-Duty Axle-Less Trailer Suspension - 4" Lift Spindle - Off-Road Tires - 3,500 lbs Item # ASR35HDS02 is compatible with the Dexter Trailer Idler Hub for 5,200-lb Axles - 6 on 5-1/2" Item # 008-213-9B.
    view full answer...
  • Dimensional Drawings of the Timbren Heavy-Duty Axle-Less Trailer Suspension Part # ASR35HDS02
    I have attached the dimensional drawings of the Timbren Heavy-Duty Axle-Less Trailer Suspension part # ASR35HDS02 for you. This system has a weight capacity of 3,500 lbs and is designed for single and dual axle trailers. It has a 5 bolt brake mounting flange and works with hubs that use an 25580 inner/15123 outer bearing. They also come with a 3-year warranty. I have attached a review/installation video of the above system for you as well.
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  • Can Timbren Axle-Less Kits be Used as Tandem Axle Setup
    Sounds like you are asking if you can use the Timbren Heavy-Duty Axle-Less Trailer Suspension # ASR35HDS02 as a tandem setup. You can use two of these as a tandem setup for a trailer. This specific kit has a 4 inch lift built into it and has a capacity of 3,500 lbs per axle.
    view full answer...
  • What Straight, 3,500 Pound Capacity Axle Do You Recommend for My Trailer?
    I have a solution for you. Unfortunately, we currently do not carry straight 81-inch axles for your trailer. However, we do have an axle-less option for you. For that route, I recommend the Timbren Heavy-Duty Axle-Less Trailer Suspension - 4" Lift Spindle # ASR35HDS02. The Timbren axles come with the 3,500 pound capacity you are seeking and will provide a smoother overall ride than a straight axle setup. This is because the force that affects one side of the Timbrens will not affect the...
    view full answer...
  • Can Timbren Axle Less Kit Replace Torsion Axle
    Yes, you can replace a 3,500 lb torsion axle with a Timbren Axle Less kit like the part # ASR35HDS02 that you referenced. This kit will have a lift of 4 inches built into it and has a slightly wider distance between the hub face and the trailer frame to allow for better clearance for wider off-road tires. Basically this just attaches directly to the trailer frame directly.
    view full answer...
  • Is The Weight Capacity On The Timbren Axle-Less Trailer Suspension The Pair Or Per Side?
    The Timbren Heavy-Duty Axle-Less Trailer Suspension # ASR35HDS02 is rated for 3,500lbs. This is the weight capacity of both sides together.
    view full answer...
  • Timbren 3,500 Pound Axle-Less Trailer Suspension System to Work with Hydraulic Handbrake
    We offer three heavy-duty off-road Timbren systems for 3,500 pound axles: Straight spindles # ASR35HDS01 2 inch lift # TASR35HDS06 4 inch lift # ASR35HDS02 I've linked our selection of hub and drum assemblies that will fit the Timbren systems so you can choose the correct bolt pattern.
    view full answer...
  • 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.
    view full answer...
  • Can Timbren Axle Less Suspension be Used on Trailer with I-Beam Frame
    Installation of a Timren Axle Less like part # ASR35HDS02 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. I attached a help article that covers adding electric over hydraulic brakes to a trailer for you to check out. This will walk you through the process. The # HBA16 is the actuator we recommend the most since it works the best and is the most reliable.
    view full answer...
  • 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.
    view full answer...
  • Trailer Axle/Suspension System for Off Road 5 by 8 Trailer for Ground Clearance
    The best suspensions system I could recommend for your offroad trailer that you plan to run big tires on would be the Timbren Heavy-Duty Axle-Less Trailer Suspension # ASR35HDS02. This has a 4 inch lift built in to it for better ground clearance, doesn't have an axle that runs under the trailer for better ground clearance as well, is set up specifically for wide tires, and has a 2,000 lb capacity. Without knowing exactly what tire size you have and your other trailer dimensions its hard...
    view full answer...
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  • Brake Flange Nut Recommendation for Securing Brakes to Timbren Axle Less 3,500 lb Kit
    The size of nut required to secure a brake assembly to the mounting flange of the Timbren Axle Less kit part # ASR35HDS02 is a 3/8 inch, fine thread bolt like # 38N.
    view full answer...
  • 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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  • Can Hub and Drum Assemblies be Changed on a Military Trailer
    You may be able to change hub and drum assemblies on your trailer. I would need to know the inner and outer bearing numbers stamped into the sides of the bearings. With that information I can determine which assemblies will fit. If for some reason you are unable to get the numbers off the bearings you can measure the spindle instead. These measurements have to be as accurate as possible so you should use calipers such as # 301-17068 to measure the spindle to the thousandth of an inch....
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  • Timbren Axles Trailer Suspension For Overlanding Trailer
    You will need the Trailer Idler Hub Assembly for 3,500-lb Axles - 5 on 5 - Pre-Greased # 84550BX. These will mount on the Timbren Heavy-Duty Axle-Less Trailer Suspension - 4" Lift Spindle - Off-Road Tires - 3,500 lbs # ASR35HDS02. These hubs are rated for wheels up to 15 inches.
    view full answer...
  • Why Does HD Version of Timbren Axle-Less System Use Standard Bearings
    The bearings are the same as they are related to the capacity of the axle and the the size of spindle that is called for based on that. The heavy duty portion of the setup is more related to the clearance that allow for more ground clearance and tire width clearance. Not sure how to defend the EZ lube setup as being a weakness as we have not see that to be the case at all, but almost all of our trailering customers are using the trailers on the highway and the application may be less stressful. The...
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  • What is the Difference BEtweeen the Timbren Axle-less Suspension 3500 vs 3500hd W/4inch lift
    The difference you will see between the standard type Timbren Axle-Less Trailer Suspension System Regular Tires part # ASR3500S06 and the Timbren Heavy-Duty Axle-Less Trailer Suspension Off-Road Tires part # ASR35HDS02 all comes down the the spindle that they use If you'll look in the provided pictures you can see that the HD version has a space behind the brake flange and the standard duty models do not. This space is the ensure you have enough room to clear the larger off road type of...
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  • Solution to Promote Clearance for Towing a Trailer Off-Road
    I have never head of anything like that but I guess it isn't out of the realm of possibilities. You'd just have to make sure that your trailer frame is lifted high enough that these tires don't touch the ground if that's what you're going for. A potential issue I see is that this would be heavy enough that they may act as a counter-weight to your trailer tongue and cause the tongue weight to not be heavy enough which can result in poor trailer handling. When you were describing your situation...
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  • Best Timbren Axle-less Suspension System for Tandom Axle 2,800 lbs Off Road Trailer
    Thanks for the picture of your trailer and truck. The Timbren Heavy-Duty Axle-Less Trailer Suspension 4" Lift Spindle - Off-Road Tires item # ASR35HDS02 you were looking at would work with your trailer but it might be a bit excessive as it is rated for 3,500 lbs for each system and you're wanting to add two for a 2,800 lbs trailer. I recommend the Timbren Axle-Less Trailer Suspension System item # ASR1THDS03. This Timbren axle-less system is comparable as it is rated for off-road tires...
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  • Correct 3,500 Lb Timbren Axle-Less Trailer Suspension for an Aliner Ranger 10 Trailer
    The correct Timbren Axle-Less Trailer Suspension for an Aliner Ranger 10 Trailer will come down to what you want to use the trailer for. If you are just looking to run the same wheels/tires you had before and pull it on the highway then the standard kit would be best and that is part # ASR3500S05. If you are looking to raise the trailer and install larger off-road wheels and tires then the lift/off-road kit would be best and that is part # ASR35HDS02. I have attached a full list of the...
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