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Bumpy tracks and uneven pavement can rattle your trailer and cargo. This Axle-Less suspension uses AEON heavy-duty hollow rubber jounce springs to soak up road shock and support the load, while rebound springs keep the trailer steady and cut down body roll and bottoming out. The result is a smoother, quieter ride whether the trailer’s empty or fully loaded.
Traditional axles hang below the frame, cutting into your ground clearance. This system removes the thru-axle completely, opening up space under the trailer so plumbing, wiring, and crossmembers stay protected. The design fits any trailer frame width and uses a built-in hole for 2" x 3" steel tubing when you need crossbeam support, keeping everything square without losing clearance.



A high deck can make loading gear a chore. The 4" drop spindle brings the trailer down for easier loading and unloading while maintaining proper geometry for steady towing. Built-in camber and toe-in reduce tire wear, and the independent left and right suspension arms help the trailer track straight through turns or dips without transferring movement side to side.
Made from robust, heavy-gauge steel with a black powder coat finish, this suspension stands up to grit, water, and corrosion. The E-Z Lube spindles make bearing maintenance easy—just attach a grease gun to the built-in zerk fittings. If a spindle ever gets damaged, it can be replaced without swapping out the whole assembly.
This system replaces one trailer axle and includes two suspension units without hubs. It carries up to 2,200 lbs, uses a 4-bolt brake flange with 1/2" holes, and provides 3-3/8" of suspension travel. Compatible with tire sizes up to ST205/75R15 and 15" wheels (zero offset), it’s a durable, adaptable setup built for steady towing and long miles.

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.
Hi, there. I'm Michael with etrailer.com. Today we're gonna take a quick look at this Timbren heavy duty axle-less trailer suspension. This suspension system is gonna provide a nice, safe, smooth, and quiet ride for your trailer. You're gonna have these two independent units that will replace your existing axle on your trailer. These do have a weight capacity of one ton or 2,200 pounds.
This will work for your single axle or dual axle trailers that use regular tires. This is not recommended for your triple axle applications. So having the two independent units here can eliminate the need for a through axle. That's going to help increase your ground clearance. Gonna lower your deck height for easier loading and unloading.
It can also help reduce the roll during cornering, and it's gonna fit any trailer width. So it's gonna be very easy to get this fitted onto your trailer. You're not gonna have to worry about finding the exact right length of axle. You can see with our spindles here, we are going to have a four inch drop. So that's going to give us an even lower deck height.
These easy lube spindles here are going to make it very easy for us to grease our bearings. So you can see we've got that built in grease zerk on the outside there. So we can just hook up our grease gun, pump some grease in there. It's gonna come out through a hole on the backside here to fill up that bearing and housing. This does have the option to be removed.
So if the unit is ever damaged, you can just replace the spindle there instead of having to replace everything. This does have the Aeon springs here on the side. You can see those are progressive rate main springs that are going to help absorb your road shock and support your trailer's load as you're going down the road. So it's gonna deliver a nice, smooth, stable ride regardless of your load size. So the more weight you put on your trailer, the more they're going to compress and become stiff. I had to support that weight. If you have a light load or no load at all, they're going to compress very lightly. So it's going to help to reduce the rattling that you sometimes get if your trailer is unloaded. The rebound springs on the backside here are going to act as a return device to minimize that rattle and bottoming out. And that's gonna create the constant pressure on the arm so that the suspension is never completely relaxed. These do have a built-in camber to them, as well as a tow-in that's gonna help keep the trailer to track straight. Reduce the wear on your tires especially as you put it under load. It's gonna make sure that everything is aligned properly. These are super easy to get installed. You can either bolt them on, or weld them to your trailer's frame. They do not include the mounting hardware. You'll have to pick that up on your own. Probably just local hardware store or something like that. One thing to keep in mind, it's possible that these can replace an axle. You won't have to have an axle, but it kinda depends on your trailer. So if you do not have a cross-member above the spot where you want to install this Timbren system, you're probably gonna need to reinforce the frame. You can do that one of three ways. You can retrofit the trailer with a cross member, you can build out the trailer frame, or you can use a standard two inch steel tubing to connect the two Timbren suspension units here. You can see there's a channel on the backside here that you can connect that to. Just your standard two inch steel tubing. You could probably find that in the welding section at a local hardware store, something like that. And so that's only if your trailer does not have the cross member above the spot where you're wanting to install these. So just make sure that your trailer is gonna be nice and supported across there. Those are the three options if you don't already have that support. These are a nice heavy duty steel construction with a black powder coat finish. So it's gonna resist wear and corrosion. It's gonna hold up really well for you. These are gonna do a really good job of helping to absorb that shock. Not gonna need much maintenance at all other than, you know, greasing up, lubricating your bearings there. But the rubber springs aren't gonna require any maintenance. They're gonna hold up really well and do a good job for you. So that's gonna complete our look for today. Again, I'm Michael with etrailer.com. Thanks for watching..
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.