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When loose gravel or steep driveways are part of the route, a low-hanging axle can be a real limitation. This heavy-duty Axle-Less suspension removes the traditional axle beam entirely, giving you more ground clearance while keeping your deck height the same. Each unit bolts directly to the trailer frame and fits any frame width, so you can navigate uneven terrain without worrying about catching the axle or bottoming out.
Rough pavement and washboard roads can make a trailer bounce and rattle. The built-in AEON jounce and rebound springs take care of that by absorbing road shock and supporting the trailer’s load. They work together to control body roll and minimize rattle and bottoming out. The result is a quiet, balanced ride—loaded or empty—without the harsh feel of leaf springs.
Traditional axles transfer bumps and sway from one side to the other, but here each side works on its own. The two suspension units operate independently, so a bump on one side won’t shake the entire trailer. That means better control when cornering or driving uneven surfaces where one wheel drops or rises unexpectedly.
This system is rated for 3,500 lbs and built from robust heavy-gauge steel that stands up to off-road use. The 5-bolt brake flange accepts compatible brake assemblies, and the standard-height spindle includes E-Z Lube fittings for quick bearing maintenance. Each unit offers 2-5/8" of suspension travel with built-in camber and toe-in to reduce tire wear.
Installation is straightforward since there’s no need to measure hub faces or worry about axle lengths. The units mount directly to the frame using Grade 5, 5/8" bolts (not included). The black powder-coat finish resists rust and corrosion, while polyurethane bushings in the control arms require no lubrication. Once installed, you get a strong, maintenance-friendly setup that’s ready for miles of towing.
| A | B | C | D | E | F |
|---|---|---|---|---|---|
| 14-5/16" | 17-1/4" | 1-1/2" | 6-1/4" | 3-1/2" | 5" |
| G | H | I | J | K | L |
|---|---|---|---|---|---|
| 5-5/8" | 6-1/4" | 5-3/4" | 2-1/4" | 3-1/4" | 5-1/4" |
Alternate Instructions
Ratings & Reviews
Conrad S.
4/1/2015
HI Matt,WHat size wheel did you use and which hub did you get to match?Appreciate the info
Matt N.
2/6/2016
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.
Michael
1/15/2016
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.
Ashley
1/18/2016
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.
Gwendolyn Y.
10/23/2025
Can't wait to hear how the install goes, Christopher! What kind of trailer are you going to install them on?
Steve
9/11/2025
It is perfect.
Quality M.
9/26/2013
Your comments regarding the Axle-Less Suspension are greatly appreciated. To address the issues you have pointed out, we have carefully reviewed our assembly. While we did not come across any major issues, we did however discover a few areas where the quality could be improved, specifically in the areas you brought to our attention. The following improvements have been made to improve the manufacturing process: - Robotic welder gun re-programmed so that it stops from getting too close to the areas adjacent to the mounting holes of the outboard arm and control arm. This will minimize weld spatter. - The distortion of the flat plates is due to the high degree of heat generated during welding. We conducted experiments, changing the sequence of welding operations until we were successful in minimizing the distortion. We apologize if our customer service in addressing your concerns was insufficient at the time of your phone call. Timbren is an ISO 9001:2008 company with an excellent reputation for providing customers with quality products that are well-performing and easy to install.
Larry D.
9/28/2017
WORKING GREAT MUCH BETTER RIDE STILL 5 STARS
Robert
3/7/2021
Fantastic O will ONLY use Timbren Axles on my Overland Campers
Robert
3/7/2021
Fantastic O will ONLY use Timbren Axles on my Overland Campers
Philtreeman
11/20/2019
We just drove 1200 miles mostly at 75mph. The axles work very well in all conditions, trailer ride very smoothly.
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Pat A.
3/15/2018
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.