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Rough pavement and empty trailer bounce can shake up your load. This Axle-Less trailer suspension uses AEON heavy-duty rubber jounce and rebound springs that soak up road shock and minimize body roll. The setup keeps motion in check, so even small bumps don’t rattle the frame or cargo. Whether the trailer’s loaded or empty, it rides steady and quiet thanks to the progressive-rate spring design.
Traditional axles hang down and catch on rough ground. This design eliminates the axle beam entirely, giving you more space under the trailer without changing deck height. The built-in, standard-height E-Z Lube spindle keeps things level but lifts the lowest point of the suspension higher, so plumbing and gear stay clear of rocks or driveway slopes.
When one wheel hits a bump, it shouldn’t shake the whole trailer. Each of the two suspension units works independently, so what happens on one side doesn’t affect the other. The result is smoother tracking and more stable turns, especially on uneven ground. The built-in camber and toe-in settings also help tires wear evenly over time.
A trailer suspension takes a beating, so this one is built from strong steel and finished with a black powder coat for corrosion resistance. The spindles accept idler hubs and feature built-in grease zerks for easy bearing maintenance. It’s a solid, low-maintenance setup designed to keep rolling season after season.
Matching axle lengths is no longer a problem. These two 28-1/2 lb suspension units bolt right to the trailer frame, fitting any width and replacing one complete axle setup. With a 1,200 lb total weight capacity and 2-1/4" suspension travel, it’s a reliable choice for light-duty trailers, custom builds, or replacements where space and flexibility matter.

Ratings & Reviews
Five star. shipping was slow. Product was great 14 K 14 plies under 2000 pounds independent suspension. Low fast and sassy. Yep that’s how I build them.
This is my second Timbren independent suspension. Definitely the best ride on the road.
We use Timbren's ASR5200S03 on all of our XOC and XOC-R trailers. These suspension are well built and have always performed well for us.
We use Timbren's ASR3500S06 on all of our XER trailers. We couldn't be happier. It is a well built suspension.
This is as close to a bulletproof suspension as they come. We use this suspension on all of our VORSHEER XOC trailers. They have performed flawlessly as an off-road suspension.
A must have suspension if you're building an off-road trailer!
Actual trailer weight 1540#, 210# tongue weight. 1310# suspension load. After 600 miles, both springs collapsed making the suspension rigid. Have received replacement springs from Timbren but haven't had a chance to try them out.
The order came in on time and the customer service at etrailer.com (Ashley) and Sean from Tmbren was outstanding. They both were very helpful in my choosing the right product for my needs. The axle less suspension's performance is absolutely superb. It vastly improves ride quality. I am using it on a teardrop camper that often goes on gravel roads and the raddling sound from the leaf axles was horrible. A couple of points to consider before you settle on the axle less suspension: keep in mind that you will lose some hight of the trailer. While you will gain clearance from the lack of the axle, the suspension will make the trailer sit lower than before.i had to lower my hitch by an inch to maintain the trailer leveled. Also it does appear to compress at higher rate than the leaf springs, which makes it softer but easier to reach it's limit. Overall this product is absolutely a must if you are looking to improve the safety and the quality of your towing.
Timbren saved our RV road trip! The leafs on the axle on our 2018 Jayco TT came apart while driving in Maryland. We tried going to the manufacturer, but they were useless. Going to a RV mechanic meant being grounded for at least 2 months. Then we found Timbren. With the help of Timbren's excellent staff we purchased axle-less system through etrailer, who made sure we got as quick as possible. It came ahead of schedule, my husband installed the Timbren system and we were back on the road! The axle-less system is better than the original manufacturers. If you plan on taking your RV or TT farther than 100 miles GET THIS INSTALLED and get it through etrailer.
Very exicited about these axels, I have been eyeing these for over a year. (Excellent service from etrailer, they had my parts to me in 1 day from the time of placing the order.) These axles seem to be well made and fit nicely with the Dexter hub and drum assembly and the 12" electric brake kit. I installed this all on a M1101/M1102 trailer frame after removing the factory axel assembly. I have not ran these on the road or off as of yet but will give another review at that time. The fit and finish are great and the packaging was good, a little banged up from shipping (missing 1 washer)
Installed the Timbren Axle-less suspension a little over a year ago and approximately 5000 miles ago. I have been extremely satisfied with the installation and performance thus far and have had no issues. I also chose to install an optional crossmember for more strength using a 1/4" thick piece of 2x3 steel. I had to increase the weight capacity of my campers suspension due to renovating the interior completely and adding more weight. I also strengthened the frame to accommodate the extra weight. In addition to installing the Timbren 5200LB system I installed new 12" electric brakes and upgraded to 225/75R15 tires with E load range rating.
Hi Amy,,
I got my order yesterday, it is perfect for what for my off road camper trailer project.
Maybe a little (lot!) Over kill, but where it will be going I don't think over kill is a bad thing.
I have made a lot of purchases from you guys and have never been disappointed.
I will probably need to purchase the hub/break assembly next.
Thanks for everything,
Trailer suspension and disk brake performance is outstanding big big difference over leaf spring and electric drum brakes.
Installation required modifications to the frame to monut the timbren suspension
Customer service is amazing! Thanks to all of the team at etrailer.
The trailer rides great down the road and no more worries about saltwater and rusty leaf springs. Not a cheap option but I’m very happy with the setup. When installing, just be sure to measure accurately and have sharp drill bits. A drill press type of guide also helps ensure correct drilling angles. The first picture is of a mounting gusset a local welding shop made. One is needed for each side and necessary to provide needed mounting strength-at least on my trailer frame. Pics 2 and 3 show the mounted suspension on one side of the trailer. Pic 4 shows the suspension on one side of the trailer with the axle attached and a separately purchased disc brake assembly mounted on it. Finally, pic 5 shows a 2” box channel between both suspension assemblies. Independent suspensions would have been nice, but I wanted to ensure trailer rigidity was maintained. So, after one year, so far, so good. It’s all smooth sailing down the highway.
Installed the Timbren Axle-less suspension a little over a year ago and approximately 5000 miles ago. I have been extremely satisfied with the installation and performance thus far and have had no issues. I also chose to install an optional crossmember for more strength using a 1/4" thick piece of 2x3 steel. I had to increase the weight capacity of my campers suspension due to renovating the interior completely and adding more weight. I also strengthened the frame to accommodate the extra weight. In addition to installing the Timbren 5200LB system I installed new 12" electric brakes and upgraded to 225/75R15 tires with E load range rating.
Best axle system for overland trailers and their travels, great independence system for those 1-6 trail ratings, simple to work on , easy bolt on system. I would recommend to grease after each trip . The standard Duty -4" Drop- 4Bolt Flange- 3500 lbs give me about 21" clearance with 35" x 12.5 tires
Every thing is fine.
400 miles on the trailer, seem to work well. Great paperwork and instructions.
Good quality well built parts and quality shipping
The greatest suspension I have ever had. On my wheel fish house, drive down road and get to lake everything is still where I set it. Can’t believe how smooth it rides. Will buy more when needed.

Chuck
1/13/2020
Still perfect
I bought an 18 ft boat trailer and built a rack for carrying kayaks. The axle was rated for 2000 lbs on leaf springs. The trailer bounced like a basketball. After watching the video for this suspension system, I figured to give it a try. This product far exceeded my expectations. The trailer rides like it's floating on air, and the next best thing is all the spring rattling is gone. I would never go back to a leafspring suspension again. I can't believe how well this works.
I have an old sears game fisher trailer that was modified to fit my 12' Livingston, and you can't find parts to fit those old hubs, etc. so I switched it over using the Timbren system. Installation was a breeze for me and a friend, less than 3 hours total time using regular garage tools, and I couldn't be happier with the results. I went with a square bar instead of "boxing in" the hub members as it was easier and less work. I'd recommend the Timbren Suspension to anyone...
ok, so firstly, the parts came well packaged and undamaged. What you need to know is that you may have to add angle iron or box tube or other metal parts NOT PROVIDED to make the hubs line up with where they were on your previous suspension (if this is a replacement). This is important to assure that the trailer rides at the same height, and that the tires are located in the same place in the wheel wells. In my case I had to add two pieces of box tube to the frame, and a third one that spans across from the left to the right axle-less suspensions. Also check that your trailer frame is square so that the toe-in adjustment is possible. All of this was fairly simple. Now to the satisfaction of the ride... I was replacing a leaf spring suspensions because it was making too much noise over bumps, and not damping the response to bumps well enough, with my very light weight boat (200 lbs). With the new parts installed, and radial tires replacing the bias ply tires I had, I do not hear the trailer at all now. I don't feel it bounce any more either. I completely did what I was looking for. I also want to mention that there were other sources of noise that I took care of as well. The hitch tongue was loose in the receiver, my trailer jack handle was flopping and making noise, as was the handle on the boat crank. With the new suspension and tires, and these fixes, I am ready for my cross country trip with the boat.
It was a very straight forward install, it goes pretty smooth if you take your time, double check your layout,
Make sure of your bolt sizes (length) before going to the store. If you plan the project, don’t rush, its not a race, it goes really good. I spent about 10 hours spread over two days by myself. I am just waiting for tires to arrive.
All that said very happy with the product and etrailer. Will recommend for any axel/suspension replacement.

K V.
8/29/2022
Things have worked out well, can hardly tell there is a trailer behind the ATV very smooth ride almost no noise, vert satisfied.
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Tim W.
12/17/2021
Seriously, it is still fine.