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Dragging on steep driveways or rutted paths can take a toll. This suspension’s built-in 4" lift spindle raises the trailer deck height for maximum ground clearance, keeping plumbing and underbody parts protected. With no thru-axle hanging down, the frame sits higher and cleaner, so you can roll over uneven ground without bottoming out.
Rattling drawers and harsh jolts go away when your suspension absorbs the road instead of transferring every bump. The heavy-duty AEON hollow rubber jounce springs soak up shocks and support the load, while the rebound springs keep the trailer steady and prevent body roll or bottoming out. Together they deliver a quiet, stable ride whether the trailer is empty or fully loaded.
Each side works on its own, so what happens to one wheel doesn’t throw the other off balance. That means smoother cornering and better tracking over rough terrain or tight turns. Built-in camber and toe-in help reduce tire wear so the setup stays aligned mile after mile.
Bolting the two suspension units directly to the frame makes installation straightforward—no spring hangers or axle tube needed. The E-Z Lube spindles include grease zerks for quick bearing service without disassembly, saving time on regular maintenance.
The 2,000 lb-rated system uses thick steel arms that stand up to abuse on rough roads. A durable black powder coat finishes off the hardware, guarding against rust and corrosion so your suspension keeps working hard trip after trip.
Alternate Instructions
Ratings & Reviews
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.
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.
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?
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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Steve
9/11/2025
It is perfect.