Timbren Suspension Enhancement Systems

Custom Fit Vehicle Suspension

Demonstration of How Timbren Decreases Vehicle Sag

Timbren Suspension Enhancement Systems (SES) are easy-install kits created to provide additional support for your vehicle's suspension. These kits are designed to enhance the suspension, handling and safety of your vehicle, and also to reduce sag from heavy loads by becoming stronger and more resistant as the weight of the load increases.


Depiction of Vehicle Role


Depiction of Trailer Sway

Use Rear Application Kits For:

Vehicle with Snowplow

Use Front Application Kits For:

Not Applicable:

How Does It Work?

The smoothness of the ride results from the rubber construction of the springs.

Compression and Expansion of Timbren's Aeon Spring


Diagram of a Loaded and Unloaded Convoluted Spring

Progressive Support Comes from the Convoluted Springs


Timbren SES kits can be installed in only a few simple steps.

Installation Time

Tools Required

Typical Parts Included in a Timbren SES Kit

Timbren SES Kit Parts

Kit comes with parts needed for installation on one axle.

Installation Steps

Drawing of Typical ClearanceDrawing of Typical Clearance in a Heavy-Duty Application

Recommended Clearance

Additional Clearance Information

If your spring does not have the recommended clearance, yet the ride of your vehicle is satisfactory, then ensuring the recommended clearance is not necessary.

If you do not have the recommended amount of clearance or your ride is not satisfactory, you can take a few steps to resolve the problem.


Timbren SES kits have a limited lifetime warranty.

Updated by: Raymond P.

Last updated: 6/27/18

Questions and Comments about this Article

Hector L.

I am considering this for my Toyota Tundra 2016. I just started pulling a 2017 Jayco jayflight 28bhbe travel trailer. I think the tongue weight is 1050lbs and the trailer unloaded is 6500 lbs. my truck says slightly after I connect the trailer. Please provide options to eliminate sag in the rear of the truck. 82226

Reply from Chris R.

As far as suspension enhancement goes, the best way to eliminate the sag you're getting is with an air bag setup. Timbrens will do a nice job of providing better support, but they won't really prevent the squat you're experiencing. For your Tundra I specifically recommend the Firestone # F2445 . 67530

Reply from Hector L.

@ChrisR I forgot to mention I am using a weight distribution hitch. I read previously some other threads that airbags work in opposition to a wdh. Please explain! 67535

Reply from Chris R.

@Hector Thanks for the info! If you still have some sag with a weight distribution system hooked up, air springs are really the only other add-on solution to get the rear back up to stock height. There isn't a real issue with using both at the same time - we usually just try to focus on weight distribution because typically it provides enough on its own to resolve sag (thus air springs typically aren't also needed), but in some cases WD on its own just won't lift it all the way back up. 67824



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