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Timbren Axle-Less Trailer Suspension - Heavy Duty - No Drop - 5 Bolt Flange - 7,000 lbs
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Timbren

Timbren Axle-Less Trailer Suspension - Heavy Duty - No Drop - 5 Bolt Flange - 7,000 lbs

Part Number: T84CR
In Stock
$1,829.18
Trailer Axles
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etrailer Installation
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Get more clearance and a smoother ride when towing with Axle-Less trailer suspension. Built-in shock absorption limits rattle and bottoming out. E-Z Lube, standard-height spindle keeps your deck height the same. Fits any trailer frame width. Great Prices for the best trailer axles from Timbren. Timbren Axle-Less Trailer Suspension - Heavy Duty - No Drop - 5 Bolt Flange - 7,000 lbs part number T84CR can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Timbren Trailer Axles - T84CR

Highlights

  • 7,000-lb Capacity: Handles heavy trailers for stable towing on- and off-road.
  • Axle-Less Design: Removes the axle beam for maximum ground clearance.
  • Rubber Jounce & Rebound Springs: Absorb shock and reduce bounce for a smoother ride.
  • Independent Suspension Units: Each side moves separately for better control on uneven ground.
  • E-Z Lube Spindles: Built-in grease zerks make bearing maintenance quick and clean.
  • 5-Bolt Brake Flange: Works with standard brake setups for easy component matching.

Features to know about

More Clearance Without Raising Deck Height: Axle-Less Design Increases Ground Space

Low-hanging axles often catch on rocks or driveways. This Axle-Less trailer suspension removes that problem altogether by eliminating the axle beam. The standard-height spindles keep the deck height the same, but the open space under the trailer gives you more ground clearance for rough terrain or steep approaches. It fits any trailer frame width, so you don’t have to worry about matching axle dimensions.

Smooth Ride on Any Road: Dual Rubber Springs Absorb Shock and Bounce

Rough pavement and washboard roads can shake cargo loose. The built-in AEON rubber jounce springs take those hits, supporting up to 7,000 lbs while soaking up road shock. Matching rebound springs keep body roll and rattle in check. Together they deliver a stable, quiet ride whether the trailer is loaded or empty, and help prevent bottoming out on dips or uneven ground.

Independent Suspension That Tracks True: Each Side Works on Its Own

Traditional axles transfer bumps from one wheel to the other, but these two suspension units work independently. When one side hits a rut, the other stays steady, giving better handling in tight turns and over uneven ground. Built-in camber and toe-in geometry also reduce tire wear so your setup stays aligned mile after mile.

Built to Last for Heavy Use: Heavy-Gauge Steel with 5-Bolt Brake Flange

Each suspension arm is made from robust, heavy-gauge steel and finished with a black powder coat that resists rust and corrosion. The 5-bolt flange accepts compatible brakes, and the spindles use 5/8" bolt holes for solid attachment. With 2-5/8" of suspension travel and a total weight capacity of 7,000 lbs, it’s a heavy-duty system ready for long-term use.

Simple Maintenance and Setup: E-Z Lube Spindle and Modular Mounting

Greasing bearings is easy thanks to the built-in E-Z Lube spindles. If a spindle ever gets damaged, it can be replaced without swapping the whole suspension. Each unit bolts directly to the trailer frame—just drill 3 mounting holes and add crossbeam support using 2" × 3" steel tubing or a reinforcement bracket. The result is a strong, serviceable suspension that keeps you rolling smoothly.

Diagram of Timbren Axle-Less trailer suspension showing labeled parts such as jounce spring, rebound spring, trailing arm, and E-Z Lube spindle.

Timbren Axle-Less suspension crossmember installation example on trailer frame.

Steel tubing installation through Timbren Axle-Less Suspension units for trailer frame reinforcement.

Timbren Axle-Less suspension reinforcement bracket installation on trailer frame interior.

Specs

Application

  • Application: single- and tandem-axle trailers that use regular tires
  • Tandem-axle trailers require: 2 complete systems
  • Not recommended for: triple-axle trailers

Quantity

  • Quantity: 2 suspension units (without hubs)

Weight and Capacity

  • Weight capacity: 7,000 lbs

Brake and Bolt Information

  • Brake flange configuration: 5 bolt
  • Bolt hole diameter: 5/8"

Suspension Travel

  • Suspension travel: 2-5/8"

Warranty

  • Warranty: 3-Year limited warranty

Tire, Wheel, and Hub Compatibility

  • Tire size: ST235/85R16 or smaller
  • Wheel diameter: 16" or smaller
  • Wheel offset assumption: zero offset
  • Bearings (sold separately): Inner: 25580 / Outer: 14125A or 15123
  • Races (sold separately): Inner: 25520 / Outer: 142376 or 15245
  • Seal (sold separately): 10-36
  • Seal inner diameter: 2.250"
  • Seal outer diameter: 3.376"

Dimensions

  • A: 14-5/16"
  • B: 17-1/4"
  • C: 1-1/2"
  • D: 6-1/4"
  • E: 3-1/2"
  • F: 5"
  • Front view technical dimension diagram of Timbren Axle-Less suspension showing labeled measurements A through F.
  • G: 5-5/8"
  • H: 6-1/4"
  • I: 5-3/4"
  • J: 2-1/4"
  • K: 3-1/4"
  • L: 5-1/4"
  • Top view technical dimension diagram of Timbren Axle-Less suspension showing labeled measurements G through L.

Note

  • This Axle-Less system requires crossbeam support. If your trailer frame doesn't have a crossmember in place, you can retrofit it with one, or you can add a support by running a piece of 2" x 3" steel tubing through the square holes cut into these units. You could also add a steel reinforcement bracket to the inside of the trailer frame.

ASR7KHDS01 Axleless Trailer Suspension System by Timbren - Standard Height Spindle - Without Hubs - 7,000 lbs HD

Installation Details T84CR Installation instructions



Ratings & Reviews

4.6

167 reviews
5 Stars
(134)
4 Stars
(17)
3 Stars
(5)
2 Stars
(4)
1 Star
(7)
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by:
Timbrens work great! They make my homebuilt camper tow smooth, straight, and no bounce. Off road they give me better control and don’t make my light camper jump around on the trail. Install was straight forward, instructions were adequate and overall went pretty well. Staff at etrailer helped me pick the right bearings and provided great customer service as usual. I would recommend these to anyone looking to improve their trailers handling and towing characteristics.
by:
So we had a torsion axle / frame failure and these and a new subframe was our solution! Amazing product upgrade with 12" brakes and 7000lb HD Running 16" BFG ko2 tires ! These are truly bolt on if you don't have frame problems also if your running single axles on the west coast and mountains the 12" brakes are a huge upgrade!!!
by:
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.
Pat A. profile picture

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.

by:
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!
Conrad S. profile picture

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. profile picture

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.

by:
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.
Michael profile picture

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 profile picture

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.

by:
Incredible system. Handled our Overland trek through Colorado and Moab. These axles on our 1917 Ford bed ran multiple Jeep Badge of Honor trails. The suspension handled flawlessly. Handles off camber rocks and drop offs smoothly. We ran the 4 inch lift and off road offset to fit the factory Jeep wheels.
by:
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.
by:
After a great deal of research, I ultimately chose the Timbren long arm kit to replace the torsion axle under my teardrop trailer. My initial impression is that there is simply no comparison between the two. It now rides better, pulls better and handles better than I could have imagined. The Timbren axle system is incredibly well built and is much more confidence-inspiring. While the spring rate closely matches my trailer weight, the components are much more rugged and robust. The spindles, bearings and brakes are rated at double the capacity of my old axle which gives me great peace of mind. I pull my trailer, both on and off road, anywhere it will fit and the long travel and heavier components are a game-changer for my travels. Installation, while requiring a bit of forethought, was otherwise straightforward and methodical. Documentation available from etrailer and Timbren, is second to none. Instructions were clear and concise with drawings and detail taking the major guesswork out of the equation. Even though, due to the odd frame design of my trailer that required a bit of work to adapt, I ended up making some frame stiffeners, the adaptation was as simple as it could possibly be. I've ordered from etrailer in the past and they were 100% accurate on this order as well. I ordered the Timbren kit without backing plates and hubs due to the requirements of my trailer and etrailer suggested, explained availability and supplied all of the components I needed. They truly a stress-less bunch of folks with an extraordinary website. I'll no doubt turn to them again...
by:
In one word: awesome! I used these to replace a wimpy torsion suspension on a small trailer. Torsion is not made for offroad and I also wanted to add some lift to the trailer. This thing improved the ride and handling a lot. Before when the trailer was empty it would actual jump off the ground when I hit a bump or speed hump. Now it actually has travel in the suspension whether loaded or not and the improvement is noticeable right away.
Notes:
1) This is a trailing arm suspension, so in order to stay centered in the existing wheel wells it needed to mount about 8 inches further forward than the existing torsion suspension was. My trailer didn't have frame where I needed it, so I had to do some fabrication to mount the Timbren forward the 8 inches needed.
2) My original suspension the wheel center line was actually above the bottom of the frame rail by a few inches. The Timbren as you can see in the pictures the hub (wheel center line) is 6 or 7 inches below the bottom of the frame rail that it mounts to. So in the end the Timbren with no lift or drop actually lifted my trailer about 9 or 10 inches. This was perfect for my needs because it was WAY too low before and I am using it on really hilly dirt roads and it handles them like a champ!
3) You are most likely going to need a 2 inch square bar tube to connect the two sides for stability. If you are doing the install DIY, I would wait until the Timbren are installed so you can measure exactly how long you need. This stuff is really, really hard to cut so it is nice to be able to tell the metal shop to cut to length when you are buying it. I got mine at a local metal shop.
4) IF you are replacing leaf springs with Timbren, notes 1 and 2 will still apply but you will need to make the measurements to make sure you get the wheels in the same spot under the wheel wells and also measure to see if you need to get the no drop, drop or lift version of the Timbren
by:
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.
by:
Great product so far after 1 year. Everthing is holding up and i have put it to good use on multiple occasions. The lift kit made my trailer off road capable and performed to my expectations.
by:
Outstanding product. I installed this set up on a M1102 military trailer. Straight forward install once the original axle is out of the way. The ride is much better and handles the roughest of trails very well. Also, with the more modern hub you have a lot more choice in electric brakes and wheel bolt pattern.
by:
Love these axles. Will install in a week or 2. Fast shipping
Gwendolyn Y. profile picture
Etrailer Expert

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?

by:
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...
by:
Well made quality axle. The box it was shipped in failed. I hope all the parts are there.
Steve profile picture

Steve

9/11/2025

It is perfect.

by:
I love them ride is great. Quality product and easy installation
by:
I think their axle-less design is very clever. The build quality of the suspension part looks good. I have heartburn over the spindle build quality. The spindle is mounted to the suspension and then the trailer wheel mounts on the spindle. The spindles I received are warped from welding. The plate that bolts onto the suspension does not mount flat due to this warping. I called Timbren. The gentleman that helped me was very pleasant. I described the problems and he said he would check his inventory and call me back. He did call me back and said they are all like that. He said get out the grinder and fix what you can and just tighten the bolts super tight, maybe the gap will go away. Really? Wow. The other problems are a LOT of weld spatter where the bolts are supposed to fit and they made a bend in the plate too close to the bolt holes so two bolt heads hit the bend and dont fit flat against the part they are supposed to hold together. Yikes! I am taking the spindles to a machine shop to fix them but I would not have ordered this Timbren stuff had I been warned before hand. So, fair warning.
Quality M. profile picture

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.

by:
building a ground loading motorcycle trailer the bed drops down flat threw the frame resting on the surface under the trailer allowing the motorcycle to be driven on without ramps or tilting the trailer bed the axle less trailer suspension is the only way to go and it rides better .
Larry D. profile picture

Larry D.

9/28/2017

WORKING GREAT MUCH BETTER RIDE STILL 5 STARS

by:
Hello I just received my order today that I only placed on Wensday. That night at 7:30 pm. I received an email stating your order is ready for shipping! I received my order on Friday WOW FAST FREE SHIPPING. Great product fast shipping. I'm going to start building OVERLAND TRAILERS.
Robert profile picture

Robert

3/7/2021

Fantastic O will ONLY use Timbren Axles on my Overland Campers

Robert profile picture

Robert

3/7/2021

Fantastic O will ONLY use Timbren Axles on my Overland Campers

by:
I installed these on a small jeep style camping trailer that I built. I plated my frame and also used the suggested two inch square tubing to tie them together. It rides very well, looks like it should be very durable, it's a simple design, simple to install, more economical than other independent systems, has less parts to go bad than other systems, I would highly recommend to any body using a trailer on rough roads!
Philtreeman profile picture

Philtreeman

11/20/2019

We just drove 1200 miles mostly at 75mph. The axles work very well in all conditions, trailer ride very smoothly.

by:
Very pleased with the design and heavy duty construction of these axles. Used them to build an off-road trailer and they performed flawlessly throughout many challenging trails and off road situations. My only complaint is that the ez-lube hub design does not take grease very easily. I've had to disassemble the hubs to properly grease both bearings due to the inadequate amount of grease flowing into the bearings.
by:
I mounted these axels on my off road trailer, this trailer has 37" tires (same as my jeep) tracks perfectly on the road at 60 - 70 mph, Last summer I pulled this trailer on the Rubicon trail were while on the rocks the lean angle was so extream my trailer turned over on its side, when I winched my trailer back on its wheels all the weight of the trailer was on one axel. Timbren Axle-Less trailer axels are so well built and strong nothing bent, everything stayed intact. There is no sag in these axels as well. I could not be more pleased with the Timbren axels.
by:
I replaced a failing torsion bar suspension and replaced with a timbren suspension it was a straight forward installation.
by:
Be warned! I would not buy from Etrailer ever again. We received our order and Etrailer failed to send the entire trailer axle kit. They did not include one spindle in the kit, rendering our order useless without ordering an additional spindle. Because more than 30 days had elapsed before reporting the issue, Etrailer refused to send the spindle, in addition to insinuating that I was deceiving them. This must be how they increase their revenues…don’t send the entire order, and if the customer does not catch it within 30 days, the customer loses and Etrailer makes more money. Absolutely horrible customer service from the company who failed to fulfill their end of the contract while accusing me of being deceptive. One star is far too generous for Etrailer and their scams.
by:
We made an amazing creation out of those two axle-less axles.
We made a large fuel cell that is used for offroad use and it has worked excellent this entire time.
They are really great products and we would love to work with them again.
Actually, we do a ton of social media stuff and youtube and if you ever have interest in sending us products to build content around, I would love to have the opportunity!
Thanks,
Michael Brandt
Garage Bound, LLC (On Youtube and Instagram and all the other socials)
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See what our Experts say about this Timbren Trailer Axles

  • Is There A Complete Axle Upgrade Kit For 2021 Jayco Pinnacle RV With 7K Tandem Axles?
    Scott, I’m sorry to hear that. We do carry many of the individual parts needed for heavier axle setups, but there is not a universal bolt-on 8K axle conversion kit. To move from 7K to 8K axles, you’d need to upgrade all related axle, suspension, hub, brake, and hardware components to match the 8K rating. We’d need measurements like the hub-face-to-hub-face, spring-seat-center-to-spring-seat-center, axle tube diameter, brake size, bolt pattern, wheel/tire ratings, and ideally the axle tag...
    view full answer...

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