Timbren Axle-Less Trailer Suspension - Standard Duty - 4" Lift - 4 Bolt Flange - 3,500 lbs
(288 reviews)
Price: $1,119.54
Timbren Axle-Less Trailer Suspension - Standard Duty - 4" Lift - 4 Bolt Flange - 3,500 lbs
Item # ASR3500S06
Our Price: $1,119.54
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Timbren Trailer Axles - ASR3500S06
- 3500 lbs
- Universal Fit
- Spindles Only
- Lift - 4 Inch
- Rubber Spring Suspension
- No Hubs
- Timbren
- Easy Lube Spindles
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, 4" lift spindle raises deck height for additional clearance. Fits any trailer frame width.
Features:
- Delivers a smooth, stable, quiet ride - regardless of load size
- Jounce springs absorb road shock and support trailer's load
- Rebound springs minimize body roll, rattle, and bottoming out
- Built-in camber and toe-in reduce wear on your trailer's tires
- Units work independently - what affects one side of your trailer won't affect the other
- Eliminates axle beam to increase ground clearance and fit any trailer frame width
- System replaces 1 trailer axle and suspension components
- 2 Separate units bolt directly to your trailer's frame
- Designed for your on-road adventures
- Strong steel construction is built to last
- Black powder coat resists rust and corrosion
- Raises trailer deck height for maximum ground clearance
- 4" Lift spindle is built in
- Allows for simple bearing maintenance with built-in grease zerks
Specs:
- Application: single- and tandem-axle trailers that use regular tires
- Tandem-axle trailers require 2 complete systems
- Not recommended for triple-axle trailers
- Quantity: 2 suspension units (without hubs)
- Weight capacity: 3,500 lbs
- Brake flange configuration: 4 bolt
- Bolt hole diameter: 1/2"
- Suspension travel: 1-3/4"
- 3-Year limited warranty
Tire, Wheel, and Hub Compatibility
- Tire size: 235/85R16 or smaller
- Wheel diameter: 16" or smaller
- Bearings (sold separately)
- Inner: L68149
- Outer: L44649
- Races (sold separately)
- Inner: L68111
- Outer: L44610
- Seal: 10-19 (sold separately)
- Inner diameter: 1.719"
- Outer diameter: 2.565"
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.
Get more ground clearance and a more comfortable ride when you're towing with Timbren's Axle-Less trailer suspension. This suspension system provides great shock absorption to comfortably get you where you need to go and to protect your precious cargo as you travel - even on rough pavement. With 2 independently operating units, you'll get better handling when making tight turns. And because this system eliminates your axle and has lift spindles built in, you'll get maximum ground clearance.
Timbren Axle-Less Suspension vs. Other Suspension Systems
There are many suspension options for your trailer or camper. So, what makes Timbren Axle-Less different?
Axle-Less systems are a definitive upgrade over traditional leaf springs, in part because they allow you to do away with your thru-axle, allowing for maximum clearance. As you've probably noticed, having a leaf spring suspension means that your axle will always hang at least a few inches below your trailer's frame, resulting in limited ground clearance. This may make it difficult to navigate rough roads.
In addition, while leaf springs do a great job of supporting an even load, they may cause your trailer to bounce and rattle when it's empty or to bottom out with a heavy load. And they don't offer any type of shock absorption for a smooth ride - unless you have upgrades built in. With Timbren's Axle-Less system, gone are the days of dealing with these annoyances - this suspension is designed for a quiet, balanced ride, whether your trailer's fully loaded or empty.
A torsion axle is a step up in terms of shock absorption, and it provides more clearance than a traditional, leaf spring suspension, but that crossbeam will still hang down some. And if your torsion axle gets damaged in any way, it can't be repaired - you'll have to replace the entire thing with a setup that matches your exact trailer frame width.
With the Axle-Less system from Timbren, you won't have a low-hanging axle beam to get in the way when you're driving on rough roads. The lift spindles on this setup will also raise your deck height, making navigating those rough roads way easier. And the rubber springs and independent operation both combine to absorb shock and deliver a smooth, easy ride. In addition, the Axle-Less system can be easily maintained over time, and it will fit any trailer frame width, so you don't have to worry about potentially ordering the wrong size like you might with other systems.
Another suspension upgrade on the market is Timbren's Silent Ride. This setup is a great option to reduce bounce and rattle because it has the same AEON rubber springs as the Axle-Less system. But the Silent Ride still requires an axle, so you won't get the same ground clearance or low deck height as you will with the Axle-Less suspension.
Timbren Axle-Less Suspension Parts
The Timbren Axle-Less suspension is designed with you in mind. All of the parts work together so you can tow your trailer comfortably - regardless of load size.
- 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, 4" lift 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.
Installing the Timbren Axle-Less Suspension
The first step in installing the Timbren Axle-Less suspension is to make sure that the mounting points for each unit are directly across from each other. The easiest way to measure this is to mark the desired mounting points on your trailer's frame. Then measure the distance between these points and the center of your trailer coupler. These measurements (A and B) need to be within 1/8" to keep your trailer frame square.
Once you have your mounting points lined up, you'll be ready to install the system. Drill 3 holes into your trailer frame at the desired mounting points. Then bolt each unit to the frame with Grade 8, 1/2" bolts (not included).
Keep Your Trailer Frame Square
Because Timbren's Axle-Less system eliminates your trailer's thru-axle, you'll have to find another way to get the crossbeam support that keeps your trailer frame square. You have a few different options to do this depending on your application and how much fabricating you're comfortable doing.
If you're building a trailer, the best option is to begin building with the Timbren Axle-Less in mind and include a crossmember where you want to install the units on your frame. You can also retrofit an existing trailer with a crossmember.
If you don't have a crossmember where you want to install the Axle-Less system (and you don't want to add one), pick up a section of 2" x 2" steel tubing from a nearby weld shop. This tubing will serve as a support to keep your trailer square. It will hang only about an inch down from your trailer frame, providing more clearance than a thru-axle.
After you've mounted both of the units to your frame, you'll need to drill 3 holes into the steel tubing and into the built-in, square holes. Then, insert the tubing through the holes and secure it with 3 bolts (not included) on each side.
The last option is to fabricate a reinforcement bracket that can be attached to the inside of your trailer frame and to the Axle-Less suspension. It may be a little harder to fabricate a compatible bracket than to mount steel tubing, but you may get additional clearance with this method.
Dimensions of the Timbren Axle-Less Suspension
The following diagrams show measurements taken on the Timbren Axle-Less suspension system.
| A | B | C | D | E | F |
|---|---|---|---|---|---|
| 13" | 13-11/16" | 1" | 5" | 7-1/2" | 4-1/4" |
| G | H | I | J | K | L |
|---|---|---|---|---|---|
| 5-5/8" | 6" | 4-3/4" | 1-3/4" | 3-3/8" | 3-11/16" |
ASR3500S06 Axleless Trailer Suspension System by Timbren - 4" Lift Spindle - Without Hubs - 3,500 lbs
Installation Details
Alternate Instructions
Customer Satisfaction Score:
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Customer Reviews
Timbren Axle-Less Trailer Suspension - Standard Duty - 4" Lift - 4 Bolt Flange - 3,500 lbs - ASR3500S06
Average Customer Rating: 4.6 out of 5 stars (288 Customer Reviews)
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, 4" lift spindle raises deck height for additional clearance. Fits any trailer frame width.by: dale04/21/2021
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.
by: Steve11/09/2020
We use Timbren's ASR3500S06 on all of our XER trailers. We couldn't be happier. It is a well built suspension.
by: VORSHEER Trailers09/24/2020
A must have suspension if you're building an off-road trailer!
David R.
9/27/2021
Its been a year and this suspension is still doing great!
by: VORSHEER07/07/2021
Best suspension you can get for off-road trailers. We use this suspension on all of our VORSHEER XER trailers.
by: Domenico07/20/2020
These are going on a single axle trailer. They appear to be heavy duty and well made. The shipping was quick.
by: Marty07/01/2015
Only been driving around on the axle-less system for about a week now and it has far exceeded expectations. I get better gas mileage, my trailer now sits like it was intended to, my trailer doesn't bounce like it used to, I wouldn't trade this axle system for any other. Just wish I would have known which outboard assembly arm my trailer needed with the axle-less system before I placed my order. Still not a problem though, plan on using the wrong outboard arm to build a different trailer. So far, a great product!
by: Michael 09/21/2021
Came late. Not e-trailers fault. Covid-19 and China's fault. They bolted right up on my trailer frame. Really like the way they make my tear drip trailer handle. No sway, no bouncing all over like it use to. Will always put these under any trailer I build from now on. E-trailer keep up the great work.
by: doug a10/26/2016
works great, only had one discrepancy, on a long trip part of the rubber on one side of the trailer worked its way out, it was repaired and hasn't given us any other problems.
by: Will01/08/2015
These are quality. Excellent ride height and clearance. Turns your ordinary trailer into a bulletproof beast.
by: Zac 11/30/2020
You guys are awesome! Great how to vi deos.
Zac
12/8/2021
Great
by: Bashore Safe & Vault07/13/2016
The suspension I ordered is of high quality and I received it sooner than I expected , its good to do business with a company that produces its products so fast.
by: Jude S.11/20/2014
Everything arrived in great shape and included easy to follow installation instructions.
by: Brian05/04/2020
Everything was delivered ahead of schedule and met the expectations provided by the sales person.
by: Philip 03/22/2023
by: Patrick 06/02/2021
Work great
by: Greg02/10/2021
Killer axles
by: Dan 11/17/2022
by: Nathan 07/10/2020
Wow. Solid build.
by: Mark 11/01/2022
by: Greg 07/02/2021
Thank you Dena
by: Harry 01/13/2022
by: Lucas 08/24/2021
by: Christopher02/06/2022
by: Andrew A01/29/2021
by: JB07/29/2022
The axle-less suspension worked very well for my boat trailer. The suspension was easy to attach to the trailer frame and provided a lower profile than the traditional leaf spring and axle system.
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Dale
4/22/2022
Actually over a year, and still working great.