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  1. Vehicle Suspension
  2. Timbren
  3. Bump Stops
  4. Towing/Load Leveling
  5. Front Axle Suspension Enhancement
  6. Extra Heavy Duty
Timbren Front Suspension Enhancement System
etrailer Installation
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Timbren

Timbren Front Suspension Enhancement System

Part Number: TGMFK15CA
$269.36
Retail:$316.90
You Save: $47.54
Vehicle Suspension

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etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
14,000-lb Capacity. Great for trucks with plows, these front hollow rubber springs help to stabilize and level your vehicle. They also provide a more comfortable ride by absorbing road shock and improving roll stability. Easy to install and use. Great Prices for the best vehicle suspension from Timbren. Timbren Front Suspension Enhancement System part number TGMFK15CA can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Timbren Vehicle Suspension - TGMFK15CA

Highlights

  • Custom Fit for Your Vehicle: Mounts to existing attachment points
  • 14,000-lb Front Load Support: Keeps your truck level and steady when carrying heavy front equipment.
  • Better Steering and Braking: Prevents front-end sag so handling and headlight aim stay consistent.
  • Smoother, More Stable Ride: Hollow rubber springs absorb bumps and road shock to cut harsh bounce.
  • No Maintenance Needed: Progressive rubber springs work automatically without air lines or PSI checks.
  • Quick DIY Install: Bolts on in place of factory bump stops with no drilling or special tools required.

Features to know about

Stay Level with Heavy Front Loads: 14,000-lb Suspension Support

When you hang serious weight up front, like plows or other gear, you need support that keeps your rig level and steering true. The Timbren Front Suspension Enhancement System adds up to 14,000 lbs of capacity with its Aeon hollow rubber springs. These springs work with your factory suspension to keep the front end from sagging, improving traction and braking while keeping your headlights aimed right where they should be.

Truck with a front-mounted snowplow supported by Timbren front suspension enhancement to maintain level ride height and reduce tire wear.

Smooth Out Rough Roads: Rubber Springs that Absorb Shock

Every bump and pothole adds stress to your suspension. Timbren’s hollow rubber springs act as shock absorbers that take the hit before it reaches the rest of your system. The rubber construction cushions light loads for a comfortable ride, then stiffens up progressively as weight increases. That means smooth travel when empty and solid stability when loaded down, all while reducing wear on your suspension parts.

Truck on a rough road illustrating shock absorption benefits of Timbren rubber springs for smoother, more stable ride quality.

Diagram showing a compressed Timbren hollow rubber spring demonstrating progressive suspension design for load leveling and improved ride stability.

Stay Steady in Crosswinds and Turns: Independent Spring Action

Uneven ground, sharp turns, or off-center loads can make a vehicle lean and feel unstable. Each Timbren spring works on its own side to keep things balanced. When one side compresses, the other stays ready, so sway and body roll are kept to a minimum. The result is a planted feel through corners and better control when conditions get tricky.

Illustration showing how Timbren suspension enhancement reduces sag, body roll, and squat for improved vehicle stability.

Simple Bolt-On Setup: No Drilling or Air Lines

Installing the system is straightforward thanks to vehicle-specific brackets and hardware that replace the factory bump stops—no drilling required. With no air hoses, compressors, or gauges to hook up, you can bolt it on and get back to work faster. Once installed, the springs stay in place and automatically adapt to your load without any adjustments or maintenance.

Specs

Included Components

  • Includes: 2 Aeon hollow rubber springs, vehicle-specific brackets and hardware for simple installation
  • Replaces: axle bump stops on frame

Installation

  • Drilling Required: No drilling required

Weight and Capacity

  • Capacity: 14,000 lbs
  • Do not exceed: the vehicle's weight-carrying capacity

Compatibility and Design

  • Designed to work with: a suspension system that is in good working order

Warranty

  • Limited lifetime warranty: satisfaction guarantee

GMFK15CA - Front Suspension Enhancement System with Aeon Hollow Rubber Springs by Timbren



This Product Fits The Following Vehicles




Customer Satisfaction Score:

Ratings & Reviews

4.7

764 reviews
Review sort icon
14,000-lb Capacity. Great for trucks with plows, these front hollow rubber springs help to stabilize and level your vehicle. They also provide a more comfortable ride by absorbing road shock and improving roll stability. Easy to install and use.

by:

I had a problem with getting front sumo springs relative to the rear sumo springs I purchased earlier; however, the staff at etrailer were very helpful in getting me a suspension enhancement component made by timbren which I just installed. I believe the timbren supports are going to do the job I was looking for and make me just as happy as I am with the rear sumo springs. You will notice from the photos the supports make direct contact; however, the pictures were taken on a unlevel surface and when the truck is on a level surface the direct contact is equal on either side. Also, the timbren supports provide substantially more weight capacity in the event I choose to haul my scooter on the front end of the truck. Thanks again Derek S and etrailer staff I am very pleased with the service, customer relations and professionalism experienced when ordering my parts. Thank you, Bobby (Louisiana).



by:

The front Timbren are working very good.The rear not so good



by:

I would say that the product is a bit pricey for what it contains. The secondary bolts came with the wrong sized nuts. Other than that, they work well to support the suspension.



by:

Install was straightforward. Hardest part was getting the old bump stops out. Sway was greatly reduced on the Interstate and the rock and roll by passing semis was greatly reduced. Wish I had bought these sooner!



by:

These bumpstops really work, they stop the front end vibration before it travels through the shocks and springs, for a smooth ride



by:

Pretty pricey but well worth it. Put these all the way around at the same time as new rear leaf springs on our c7500 topkick and it made a huge difference. It's a top heavy bucket truck and it would rock and roll just turning a corner to the point it was downright scary. Now thats greatly reduced. They also smoothed out the ride especially when loaded more than I expected.
Install was simple, perfect fit. Worst part was grinding out the rivet on the old bracket



by:

I haven/t installed them yet. I think I should have gotten a discount for the age of the "box"s the Timbrens were in. May be a credit ,, Brad



by:

Super simple installation that took about 20 minutes. These made a HUGE improvement on steering control and bounce. Driving on the freeway is a breeze. I highly recommend this product.



by:

It good but one side with no bump had to be put spacer but the spacer was flat so the bolt did not have a lot of thread so I grind the spacer a bit so it could stay flush otherwise this might solve the problem of outter tire wear that ford transit has will find out soon



by:

I love these things. They are worth the upfront expense. I have them on two ¾'s, one ½, and a minivan for road trips. This particular set is full-time active up front. I have a 2" leveling kit and I'm in em no matter what. Zero complaints though. Solid performance through all aspects. I don't run any front-end attachments.



by:

I have a 2006 Kodiak 2 wheel drive. Timbrin firmed up the front end to much. There in full contact with the spring. I think it to stuff and I might be removing them. The install was straight forward. Parts are as expected and quality of Timbrin is great. Just not enough cush..



by:

Great ordering, shipping time, cost, and supporting information. We added a snow plow and the product did everything as advertised.



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Didn't realize it wasn't a set so just had to order a second one. First one looks good.



by:

Works for me



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perfect -



by:

installed on a Silverado 1500. Easy install in about 30 min or less. So far its working great. Ride quality has also improved.



by:

Fast excellent service. We have not installed yet so can’t speak to the installation or performance.



by:

Great site, customer service was extremely knowledgeable helping me find the parts I needed. Everything was shipped quickly, and I received exactly the items I needed.



by:

Sale rep was very helpful and made the sale easy. Fast shipping



by:

Had to tight it one or two times due to difficulty getting to location but works like a charm once I. Place and tight



by:

The directions and pictures could definitely be better illustrated. It took 20 minutes to figure out the directions and only 5 minutes to install. Quality made and definitively made a difference with the snow plow mounted on the front end.



by:

Excellent system……however factory sway bar links had to be lengthened due to the links hitting the bracket when compressed……other than that a great system.!!!



by:

Basically I was totally disappointed with the product. Instructions were very poor, at one point they said to install by using the rear hole of the two, there is only one hole in my truck. Instructions said to replace sway bar link bolt with the supplied bolt in the hardware kit. There were no nuts included to use the supplied bolts. My factory bolts were not the same size as the supplied bolts so nuts would not fit. Installation illustration was very poor. An actual picture would have been so much better. After install, there was no difference in my truck! This is no reflection upon etrailer. Steve even said that I could return if unhappy in any way but too much hassle to remove. Disappointment is all on timbren. I even tried calling timbren but they didn't answer and did not return my call. Thanks

Jenny N. profile picture

Jenny N.

10/27/2022

I see that you had rated your experience as a one star and I wanted to see what we could have done better.


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