2000 lb HD Axle-Less Trailer Suspension w/ 4” Drop
2000 lb HD Axle-Less Trailer Suspension w/ 4” Drop
2000 lb HD Axle-Less Trailer Suspension w/ 4” Drop
2000 lb HD Axle-Less Trailer Suspension w/ 4” Drop
2000 lb HD Axle-Less Trailer Suspension w/ 4” Drop
2000 lb HD Axle-Less Trailer Suspension w/ 4” Drop
2000 lb HD Axle-Less Trailer Suspension w/ 4” Drop
2000 lb HD Axle-Less Trailer Suspension w/ 4” Drop
2000 lb HD Axle-Less Trailer Suspension w/ 4” Drop
2000 lb HD Axle-Less Trailer Suspension w/ 4” Drop

2000 lb HD Axle-Less Trailer Suspension w/ 4” Drop


FREE Ground Shipping on Orders Over $99

3-Year Warranty

Available to ship within 2 weeks.

Go off-the-grid with your camper. Tow your hunting trailer to remote trails. Take your custom rig on that overland trek.

Our HD Axle-Less trailer suspensions are built exclusively for off-roading and overlanding. With no through axle to cause hang-ups, you’ll experience exceptional ground clearance. And as an independent trailer suspension, you’ll maintain maximum control of your rig over rough off-road terrain.

Components made from heavy-gauge steel support the increased demands of off-road use. And our softer Aeon® rubber spring allows for more suspension travel without compromising strength or capacity.

Shims are also supplied giving you the option to adjust, if necessary, the suspension alignment and camber specific to your trailer frame. Polyurethane bushings — used at the pivot point on the control arm — hold the pin firmly in place, resulting in better stability and a more controlled alignment with each moving component.

Durable and weather-resistant, these suspensions are built to last in any environment, from the heat of the Australian Outback to the sub-freezing winters of Canada.

So you can tow anywhere you go — and enjoy a smooth, quiet ride along the way.

Each Axle-Less trailer suspension kit comes with both driver and passenger side to give you a full suspension.

Key Features

  • 4” drop outboard arms to achieve lowest possible deck height
  • Standard spindles for use with standard-width tires upto a maximum size of ST205/75R15
  • Components made from heavy-gauge steel support off-road and overland demands
  • HD gussets for maximum reinforcement
  • Patented Aeon® hollow rubber spring for smooth, quiet ride
  • Polyurethane bushings balance out performance, durability and comfort
  • Brake flange Included for optional brakes
  • Smooth, quiet ride empty or loaded
  • Durable powder coat finish
  • Easy bolt-on installation
  • No thru axle


  • Heavy duty 2000 lb trailer suspension capacity
  • Heavy duty outboard arms with 4” drop and regular spindles for tires upto a maximum size of ST205/75R15

Weights and Dimensions

Choosing A Trailer Suspension

The optimal performance of an Axle-less system is achieved when the average load on the suspension falls within the range of 60 to 80 percent of its rated capacity. For example, a standard ASR35HDS Axle-less suspension with a load rating of 3500 lbs would operate most effectively with an average load between 2100 and 2800 lbs (950 to 1270 Kg).

It is important not to overlook scenarios of maximum load: In addition to the regular weight, consider all sources of extra weight: a full water tank, waste water tank, loaded fridge, generator and any other type of equipment, spare tire, one or two 12V batteries, water hose, power cord, and a propane tank, tent, ladder, tools, etc.

Keep in mind that the load distribution also plays a big role. In the case of a tandem trailer, due to a number of factors (including the height of the hitch, or distance between axles, etc) the load on the front axle could happen to be different that the rear axle. The weight on the left side could also be different from the right side. So one axle or even one corner could potentially be overloaded even if the trailer is not overloaded! Always follow safety guidelines and leave plenty of extra room for weight when choosing your suspension. This isn’t just about safety; it’s also about getting the best ride quality and handling for your trailer.

If you need further assistance in selecting a suspension for your trailer. Please reach out to Timbren’s Customer Service Team.


*Please note that these are the maximum allowable tire sizes for each suspension, not necessarily the most popular or preferred ones for your trailer application. The assumption is that you are using a standard trailer wheel with zero offset.

Each Axle-Less trailer suspension kit comes with both driver and passenger side to give you a full suspension.

What's Included

  • 2x HD suspensions
  • 2x HD outboard arms with 4” drop and spindles with brake flange
  • Grade 8 zinc coated hardware
  • 8x camber shims

How to Install

2000 lb HD Axle-Less Trailer Suspension w/ 4” Drop SKU # ASR2KHDSO5 

Suspension Capacity

  • 2000 lb HD

Ride Height

  • 4” Drop

Spindle Arm Length

  • Standard Length

Brake Flange

  • Yes

We offer a 3-year warranty on our Axle-Less trailer suspensions.

Covered under this warranty is the replacement of the failed part. This warranty does not include labor, freight, collateral damage, or any ancillary costs which may arise as a result of the failed part. We retain the right to make our own inspection of the failed part to determine the validity of the claim.

Read more about our warranty policy

FREE Ground Shipping on Orders Over $99

Free ground shipping is available in the contiguous United States on all orders over $99. Normal processing time is between 1 – 2 business days from placing the order.

We make every effort to ship the order within this processing time; however, no guarantees are expressed or implied.


If you’re not happy with your Timbren product, we want to remedy that. If our customer service team can’t find a solution for you, you can return your Axle-Less trailer suspension for a refund within 100 days of purchase. Product cannot have been mounted to your trailer, and return shipping is not covered by Timbren.

Read more about our returns policy

Buy this with

See Our Suspension in Action

See the Specs of Our Axle-Less Design

Our Axle-Less design features our Aeon® rubber spring technology.

A Straightforward Installation: How to Install Axle-Less Trailer Suspension Yourself

Install your Axle-Less suspension in a few simple steps, with just a few tools you already have on hand.

How to Choose the Right Timbren Axle-Less Trailer Suspension

Whether building a custom rig or retrofitting an existing trailer, here’s how to pick the right Axle-Less suspension.

See Our Suspension Go Off-Road

Stay in control of your tow no matter what obstacles you encounter.

Why Axle-Less Suspensions Are the Perfect Fit For Your Utility Trailer

Axle-less suspensions aren’t only for off-roading. Enjoy a smooth, quiet ride for your utility trailer, too.

Better than Torsion, Leaf Spring & Trailing Arm

Axle-Less trailer suspensions are a leader in the industry for a reason — more than one reason, actually.

Axle-Less Trailer Suspension

Torsion Suspension

Leaf Spring Suspension

Trailing Arm Style Suspension






Requires Axle





Improved Ride Quality


Off-Road Capable

Maximum Ground Clearance

Your questions, answered

You want all the info before choosing the right trailer suspension for you. And we want to help.

If you need maximum ground clearance for off-roading, Axle-Less Trailer Suspension is the way to go. If you don’t require ground clearance and want to utilize axles as part of a retrofit, the Silent-Ride Trailer Suspension is your best option.

Learn more about Silent-Ride Trailer Suspension

Axle-Less trailer suspensions are fully independent and do not require an axle, allowing for ultimate control of your rig.

A torsion trailer suspension, on the other hand, is housed within an axle tube and isn’t designed to hold up to the abuse and rigors of off-road or overland travel.

Our jounce and rebound springs are made from natural rubber, with all the unique characteristics that make our Aeon® springs a leader in towing and hauling.

The capacity rating represents one complete Axle-Less trailer suspension (i.e. both sides).

Yes. Some maintenance is required, such as greasing the pivot bushings and wheel bearings.

For detailed maintenance information, refer to the maintenance notes included with the installation instructions.

To begin, you’ll need to make sure the frame is perfectly square. Additionally, some trailer frames require additional support, like an extension plate to allow bolts to be installed vertically. This would eliminate the use of a cross-member, allowing you to achieve maximum ground clearance.

Have questions? Reach out to one of our resident suspension techs about your trailer project to determine whether Axle-Less trailer suspension is right for you.

Talk to a resident suspension tech