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Timbren Axle-Less Trailer Suspension - Heavy Duty - Long Spindle w/ No Drop - 4 Bolt - 2K
(167 reviews)
Price: $860.16
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Timbren Axle-Less Trailer Suspension - Heavy Duty - Long Spindle w/ No Drop - 4 Bolt - 2K
Part Number: ASR2KHDS02
In Stock
$860.16
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- All Info
- Reviews (167)
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Timbren Trailer Axles - ASR2KHDS02
Highlights
- 2,000-lb Capacity: Carries light to medium trailer loads with strength and stability.
- Axle-Less Design: Increases ground clearance to handle off-pavement terrain.
- Independent Suspension: Each side moves separately for smoother towing and less sway.
- AEON Rubber Springs: Absorb shock and reduce bounce for a quieter, steadier ride.
- E-Z Lube Spindles: Allow quick greasing without hub removal for easier upkeep.
- Fits 33" x 10.5" Tires: Works with wide tires on 15" or smaller wheels for off-road builds.
Features to know about
More Clearance Without Raising Deck Height: Axle-Less Design With Long, Standard Spindles
When you’re tired of dragging an axle tube over rocks or ruts, this axle-less suspension solves it cleanly. The Timbren Heavy-Duty Axle-Less Trailer Suspension - Long Spindle w/ No Drop - 2,000 lbs eliminates the thru-axle completely, giving you full ground clearance while keeping your trailer deck height the same. The long, standard-height spindle is built for wide off-road tires and fits any trailer frame width. The 4-bolt brake flange and 1/2" bolt holes make mounting straightforward, and the built-in E-Z Lube spindles make it simple to grease bearings whenever needed.
Smooth Ride, Loaded or Empty: AEON Rubber Jounce and Rebound Springs
Rough terrain doesn’t have to mean a rough ride. This system’s jounce and rebound springs absorb road shock, control bounce, and keep the trailer stable whether it’s packed full or running light. The AEON rubber springs handle the load and smooth out the bumps, while the rebound spring keeps the trailer from rolling or bottoming out. Each side works independently, so what one wheel hits doesn’t transfer across the trailer.
Built for Real-World Use: Heavy-Gauge Steel and Rust-Resistant Finish
Built to take abuse, the heavy-gauge steel construction handles off-road use and long miles without flexing or warping. The black powder coat finish resists rust and corrosion from road spray, salt, and grime. Everything about the design—from the welded trailing arms to the sealed bushings—is aimed at durability and long-term reliability.
Maintenance Made Simple: E-Z Lube Spindle and Replaceable Components
Keeping things serviced is easy with the built-in grease zerks on each spindle. Bearings can be cleaned, inspected, and greased without removing the hub. If a spindle ever gets damaged, it can be replaced without having to change the entire suspension. Compatible bearings include inner L68149 and outer L44649, with races L68111 and L44610.
Ready for Custom Builds: Modular Mounting and Crossmember Options
Whether you’re starting from scratch or upgrading an existing setup, this suspension gives you flexibility. The two independent units bolt directly to the side of the frame, and a 2" x 2" steel tube can be used through the built-in square holes for crossmember support if needed. With 1-5/8" of suspension travel and a 2,000-lb capacity, it’s a solid foundation for a smooth, quiet ride and the clearance you need for off-road adventures.
Specs
Application
- Application: single- and tandem-axle trailers that use wide, off-road tires
- Tandem-axle trailers: require 2 complete systems
- Not recommended for: triple-axle trailers
Quantity and Capacity
- Quantity: 2 suspension units (without hubs)
- Weight capacity: 2,000 lbs
Brake and Mounting Specifications
- Brake flange configuration: 4 bolt
- Bolt hole diameter: 1/2"
- Suspension travel: 1-5/8"
Warranty
- Warranty: 3-Year limited warranty
Tire, Wheel, and Hub Compatibility
- Tire size: 33 x 10.5 x 15 or smaller
- Wheel diameter: 15" or smaller
- Wheel offset: zero offset assumed
Bearing and Seal Information
- Bearings (sold separately): Inner: L68149 / Outer: L44649
- Races (sold separately): Inner: L68111 / Outer: L44610
- Seal (sold separately): 10-19
- Seal inner diameter: 1.719"
- Seal outer diameter: 2.565"
Dimensions
- A: 13"
- B: 15"
- C: 1"
- D: 5"
- E: 5-15/16"
- F: 4-1/4"
- G: 5-5/8"
- H: 8-1/2"
- I: 4-3/4"
- J: 1-3/4"
- K: 3-3/8"
- L: 3-11/16"
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 2" 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.
- The jounce spring supports the weight of your trailer and cargo. It easily absorbs road shock and is constructed of AEON heavy-duty, hollow rubber.
- The rebound spring delivers a smooth, stable ride - regardless of how much cargo is on the trailer. It controls the movement of the jounce spring to minimize trailer body roll, bounce, rattle, and bottoming out.
- The trailing arm with integrated hanger attaches the suspension to the side and bottom of the trailer frame.
- The control arm carries the spindle and the hub. It pivots on strong, long-lasting polyurethane bushings that never require lubrication.
- The E-Z Lube spindle is simple to grease. If damaged, it can be removed and replaced, saving you both time and money compared to a traditional axle.
- The built-in hole accepts 2" x 2" steel tubing (not included) to add support to your trailer's frame. The tubing sits higher than a trailer axle, providing additional ground clearance.
- These measurements (A and B) need to be within 1/8" to keep your trailer frame square.
ASR2KHDS02 Axleless Trailer Suspension System by Timbren for Off-Road Tires - Standard Height Long Spindle - Without Hubs - 2,000 lbs HD
Alternate Instructions
Ratings & Reviews
4.6
167 reviews
by:
mark klunder
08/21/2016
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...
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:
Todd
08/25/2021
Great suspension system. I used these for a severe duty off-road trailer and I am truly amazed at how well the trailer handles extremely rough terrain.
by:
Jeffrey
07/27/2021
Great product. Well made! Can’t wait to get it on a trailer. Includes grease fittings too!
by:
Mike
12/15/2022
Product exactly what I need. People at etrailer where beyond extremely helpful! Great to deal with!
by:
John
12/06/2021
After much over analysis and contemplation, They were easy to bolt up and install.
by:
Lawrence
06/04/2021
I just received everything
Boy, this is heavy duty!
I’m very impressed.
Boy, this is heavy duty!
I’m very impressed.
by:
Tom
03/07/2023
Great delivery time
by:
Steve
06/01/2023
by:
Shane
09/02/2022
by:
Edward
01/18/2023
by:
Spence
06/16/2023
by:
Todd
04/08/2023
by:
Benjamin
09/08/2023
by:
David
01/29/2026
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:
Tiffany
08/28/2025
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:
Pat A
03/15/2017
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.
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.
by:
Matt N
02/01/2015
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.
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.
by:
Ashley
10/17/2015
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
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.
by:
James
09/06/2022
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:
Rick B
05/11/2022
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.
axle and a 3500# spindle combination. I am running a original 14" tire.
It was a moderately easy installation.
by:
William
05/24/2020
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:
Jason
02/24/2017
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:
John I
08/19/2025
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
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:
Favian
05/15/2019
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.
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- 6 On 5-1/2" Idler Hub Assembly for Timbren Heavy-Duty Axle-Less Trailer Suspension # ASR35HDS02 For the Timbren Heavy-Duty Axle-Less Trailer Suspension # ASR35HDS02 they use a larger spindle than the Trailer Idler Hub Assembly # 84655UC1 you found. Instead you will need the Trailer Idler Hub Assembly # AKIHUB-655-6-EZ-K and need to switch to the Grease Seal # GS-2125DL on the hub. This hub has the same 6 on 5-1/2" bolt pattern as the hub you found. The Timbren # ASR35HDS02 places the hub face 8" from the frame rail while the Timbren # ASR2KHDS02 places the hub face at 8-1/2" from...
view full answer... - Compatible Axle Components for Timbren Axle-Less Trailer Suspension # ASR2KHDS02The Timbren Heavy-Duty Axle-Less Trailer Suspension - Straight Spindle - Wide Tires - 2,000 lbs # ASR2KHDS02 will work well with hubs # AKHD-550-35-EZ-K. They will also work well with the Dexter Electric Trailer Brake Assembly w/ Parking Brake - 10" - Right Hand # K23-087-00 and Left Hand # K23-086-00. I recommend the Titan Breakaway and Parking Kit for Drum Brakes # T2385200 for the parking break connection to your assemblies. This is not a direct fit as it is intended for Titan hydraulic...
view full answer... - Needing 51 Inch Long Replacement Axle Beam for Lowes Carry On TrailerThe 68 inch long axle you mention would unfortunately be too long, as it would stick out either side by an additional 8 inches, compared wo what you have now. This would make your fenders completely ineffective which would likely endanger vehicles following you down the road. We do have an option for you, however. I'd recommend the Timbren Axle-Less suspension system, part # ASR2KHDS02 which combines the suspension with the axle. This particular unit is meant for wide, off-road type tires...
view full answer... - Timbren Wide Tire Axle Less System that Fits Dexter Hub Kits K71-510-00 and K71-511-00 10The hub you have is basically the part # 84546UC3-EZ which means that for a Timbren axle less system that would work with them you would need the part # ASR2KHDS02 that has the brake mounting flanges that match the assemblies you have and a spindle that will fit the hub.
view full answer... - Recommended Idler Hub With 6 On 5-1/2 Bolt Pattern For Timbren Axe-Less SuspensionIf you have the Timbren Heavy-Duty Axle-Less Trailer Suspension, part # ASR2KHDS02 for your trailer, we have just what you are looking for. I recommend the Trailer Idler Hub Assembly, part # AKIHUB-655-35-K. This is an idler hub with a 6 on 5-1/2 bolt pattern. This hub includes bearing and race, outer bearing and race, grease seal, grease cap, and lug nuts. This hub will work with wheels from 14 inch to 17-1/2 inch diameter.
view full answer... - Can 2 Sets of The Timbren Axle-Less Trailer Suspensions # ASR2KHDS02 Be Used To Create Tandem Axle? Yes, you can use 2 of the Timbren Axle-Less Trailer Suspensions # ASR2KHDS02 to create a tandem axle on your boat trailer. Just know this will not necessarily increase the total weight capacity for your trailer as there are other factors that determine weight capacity. You will need 4 of the Idler Hubs # AKIHUB-545-35-EZ-K or Hub/Drums # AKHD-545-35-EZ-K if you are installing brakes, as these use the larger #84 spindle which is commonly found on 3,500lb axles.
view full answer... - Timbren Axle Less System Recommendation for an Offroad TrailerFor building an offroad trailer the part # ASR2KHDS02 would be an excellent place to start. The only other kit I would have you consider would be the # ASR35HDS02. This is setup for off-road tires, has a 3,500 lb capacity, will give the trailer a 4 inch lift, and will give you 8 inches of clearance from the hub face to the trailer frame for tire clearance. These systems are great for off-road use because they don't have an axle so the ground clearance is great. For a hub with a matching...
view full answer... - Timbren Axle Less System Recommendation with a 5 on 5 inch Bolt Pattern HubIf you were to get the Timbren Axle-Less Trailer Suspension System # ASR2KHDS02 you would get almost the same system as the part # A12RS440 that you referenced minus the hubs, but also a 2,000 lb capacity. You would be able to pick a different hub to fit the spindle. The correct hub you would want that would also give you a 5 on 5 inch bolt pattern would be the Trailer Hub Assembly # 84550UC1-EZ. In the 1,200 lb capacity range there is no way to get the bolt pattern you want.
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Info for this part was:
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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.