bing tracking image
  1. Vehicle Suspension
  2. Timbren
  3. Bump Stops
  4. Towing/Load Leveling
  5. Front Axle Suspension Enhancement
  6. Extra Heavy Duty
THIS ITEM IS NOT A FIT FOR
2004 BMW M3
etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
Timbren

Timbren Suspension Enhancement System - Front Axle

Part Number: THSR001
In Stock
$667.05
Retail:$784.77
You Save: $117.72
Vehicle Suspension
Not Confirmed to Fit

2004 BMW M3

Will this fit?

To see if this custom-fit item will work for you please tell us what vehicle you'll use it with.

zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.
By submitting this form, you understand and agree to our Terms of Sale, Website Terms of Use and Privacy Policy.

Thank you! Your comment has been submitted successfully. You should be able to view your question/comment here within a few days.

Error submitting comment. Please try again momentarily.

Product Images

etrailer Installation
We'll connect you with nearby partnered installers who know this exact setup.
15,000-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 Suspension Enhancement System - Front Axle part number THSR001 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (767)
  • Q & A (0)
  • Videos (1)
  • Photos
  • Used (1)

Timbren Vehicle Suspension - THSR001

Highlights

  • Custom Fit for Your Vehicle: Mounts to existing attachment points
  • 15,000-lb Front Support: Keeps your truck level and stable when carrying heavy front equipment.
  • Better Steering and Braking: Reduces front-end sag so traction, control, and headlight aim stay consistent.
  • Smooth, Stable Ride: Hollow rubber springs absorb road shock for comfort and less bounce on rough roads.
  • Independent Side Control: Each spring works separately to steady off-center loads and reduce body roll.
  • No Upkeep Needed: Always engaged design supports your suspension without air lines or manual adjustments.

Features to know about

Keep the Front End Level and Steering Sharp: 15,000-lb Suspension Support

When you hang a heavy plow or load up the front of your truck, the nose can dip and your steering and braking can feel off. The Timbren Suspension Enhancement System adds up to 15,000 lbs of front-axle support to keep things level and stable under weight. The hollow rubber springs work with your factory suspension to hold the front end up, keeping headlights aimed right and tire wear even.

Truck with front-mounted snowplow supported by Timbren suspension enhancement for level ride and proper headlight alignment

Smooth Out Rough Roads: Hollow Rubber Springs That Absorb Shock

Bumpy roads and heavy gear can beat up your suspension. These hollow rubber springs cushion the blows by taking on road shock before it reaches the cab. You get a smoother, more stable ride whether you’re loaded up or just cruising. The progressive design means they stay soft on light loads but stiffen as weight increases, keeping your ride comfortable without bottoming out.

Truck on rough terrain showing Timbren suspension absorbing shocks for smoother ride and reduced bottoming out

Stay Steady in Curves and Crosswinds: Independent Spring Action

Each Timbren spring works on its own side of the vehicle, so when you corner or swerve, they react independently to keep things even. That independent action cuts down on body roll, sway, and off-center lean when carrying uneven loads or turning through tight spots. The result is a more planted feel and better control when roads twist or winds pick up.

Timbren suspension system reducing body roll and improving stability during cornering or when carrying uneven loads

Install It Once and Get Lasting Support: Simple, Heavy-Duty Design

This kit includes two hollow rubber springs, vehicle-specific brackets, and hardware for a straightforward bolt-on setup. Once mounted directly to the frame, there are no hoses, compressors, or adjustments to fuss with—just dependable support that’s always ready to work. With a lifetime warranty and a design built for tough conditions, it’s an easy way to strengthen your front suspension for years to come.

Specs

Included Components

  • Includes: 2 hollow rubber springs, vehicle-specific brackets and hardware for a simple installation

Installation

  • Mounting: Installs directly onto frame
  • Drilling and welding required

Diagram showing loaded versus unloaded operation of Timbren hollow rubber springs maintaining vehicle level


Weight and Capacity

  • Capacity: 15,000 lbs
  • Do not exceed the vehicle's weight-carrying capacity

Close-up diagram of a compressed Timbren rubber spring showing progressive resistance under load


Compatibility and Requirements

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

Warranty

  • Lifetime warranty
  • Satisfaction guarantee

HSR001 - Front Suspension Enhancement System with Aeon Hollow Rubber Springs by Timbren

Installation Details THSR001 Installation instructions

This Product Fits The Following Vehicles




Video of Timbren Suspension Enhancement System - Front Axle
Video Thumbnail Video Player Dialog

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for A Closer Look at the Timbren Front Suspension Enhancement System-T44FR

Hi everyone. Aiden here with etrailer. Today we're gonna be taking a look at the Timbren Front Suspension Enhancement System. This is going to be an upgraded bump stop for the front end of your vehicle, whether it be a car like the 4Runner here or a motor home. These are gonna come in a variety of different kits and fits with different capacities and help stabilize the front end of your vehicle. Let's check it out.

So why would you be looking for something on the front end of the suspension enhancement side A lot of people are pretty familiar with airbags on the rear axle, and a lot of those suspension enhancement components are used in towing applications or maybe truck beds where you've got really heavy loads in the bed and you need extra support at the back of the vehicle. Now what the front end can do is stabilize that front end, if you do have something like a front mounted hitch, maybe a plow on a truck, or on a larger vehicle or even a smaller vehicle like this, it does help stabilize body roll a lot because these are going to be a lot beefier than the factory suspension and the factory bump stops, that is, and help limit that side to side movement as we're taking turns or driving down in like really windy conditions on the highway. So this will give a significant upgrade for those applications. As far as the construction for these goes it's going to be a hollow Aeon rubber material with a progressive spring rate. Now, what the progressive spring rate means is the more this compresses, the more pressure it has, the more it's going to work at returning the vehicle to its natural position.

So it's just going to resist more and more as it gets further compressed. As for the installation process, this particular one that I've been holding is for the 4Runner, and this one is a very basic kit. It really just has a threaded end with a bolt and a plate on the inside, but this just spreads into a factory weld done on the 4Runner. Very straightforward install. But for all the other different fits and kits, those are gonna have custom brackets and their own hardware that come with it.

So no matter what one you end up going with, if it's a fit for your vehicle, it's going to be custom fit. So the installation should be just a straightforward bolt on process. Now obviously that can vary depending on the kit and what vehicle you're putting it on, especially on the motor home side of things. But for the most part, you should be able to have a very straightforward install process with any of these kits you pick out. And to make sure you find the right kit for you, be sure to enter your vehicle information into our fit guide and use that to narrow down for the custom fit options available for your vehicle.

If you're considering some front suspension enhancement, I do think that these bump stops from Timbren are a really solid option. From the testing we did in installation on our 4Runner, they performed great. They reduced a ton of the body roll and really helped when we're going over speed bumps and just aggressive driving conditions where we need that extra support. Whether you've got a truck with a plow on it, or a motor home that you're trying to reduce body roll on, something like this can be be a huge help and it's a very straightforward solution. But that'll do it for a look at the Timbren Front Suspension Enhancement System Bump Stops. Thanks for watching.

Customer Satisfaction Score:

Ratings & Reviews

4.7

767 reviews
Review sort icon
15,000-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:

A+++ Excellent product and customer service. Bought both front and rear suspension enhancements and worth it. Highly recommend.



by:

I have a very heavy "Cattle Guard" on the front of my RAM 3500 and this combined with the heavy 4WD and diesel engine the extra support from the Timbren Front Suspension Enhancement System definitely keeps the front suspension from bottoming out.



by:

Have them on several trucks now and couldn't imagine running snow plows without anymore.



by:

Ok it’s been a year since I’ve had the springs and I’m impressed. With how easy the install is and what you get out of it these are truly amazing. No more “squishy” feeling when towing my 22fy travel trailer. The ride is a little bumpy but I don’t care. I’m glad I found these.



by:

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



by:

The timbrens actually did what they were suppose to do. However, once I starter driving out west I notice the timbrens were riding on the axle which cause the speedometer to jump around depending on the road. I would recommend them if you are hauling or towing a camper or RV. I was going to contact etrailer about maybe removing a spacer for one set however the other set came as one unit. The bottom line is the Timbrens does stabilize your load for safe travels. I will be contacting etrailer soon to assist in correcting the problem...Road trip from Idaho,Colorado,Wyoming,and Utah were beautiful... Thank you etrailer



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:

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:

I watched installation videos for my FFF 53 Timbren suspension parts three times to familiarize myself with what I was going to be doing. This did help. I would say you need a little bit of experience in working on cars or trucks. This is a straightforward job with no fabricating needed. The hardware was correct. The instructions were correct. The parts fit great. I did this installation by myself. Another set of hands wouldn’t hurt but not necessary. If you’re on the fence on buying parts from Timbren, I would say go ahead and place your order.



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:

Installation was not too hard, Install Videos explain all steps in great detail. BumpStops arrived in excellent condition and was delivered in a timely manner



by:

Easy install, didn't even need the brackets for my application. Really helped with sidesway in the wind and seems to help the front from dipping with extra weight. Haven't tried plowing snow yet but I think they will make a major difference



by:

I installed Timbren’s front and rear on my 2020 F53 chassis motorhome. They are by far the best suspension upgrade I have done. I had previously installed Super Steer Trac Bar, Radius Rods and Safe-T-Plus, which had helped, but not as much as I had hoped. The Timbren’s finalized the package and it drives good now.



by:

For me surprisingly easy to install at 67 years old. Had immediate handling improvement and steering control.



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:

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:

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



by:



by:



by:

I took it off and put air bag suspension on it


25
25

See what our Experts say about this Timbren Vehicle Suspension

  • Suspension Enhancement for 2024 Chevrolet 5500/6500
    Hi Travis; I'm assuming these are 2024 models since you were looking at the 2024 F-550. The best thing I can offer is the Timbren Rear Suspension Enhancement System # TURMDE. With all that weight in the back I'm sure there is a lot less weight on the front axle which is a big part of your problem. These are going to give you additional support in the rear to level the trucks and smooth out the ride. They have a massive 15,000 lb capacity so they can handle that rear weight on your service...
    view full answer...
  • What Other Suspension Enhancement Will Fit With Firestone Air Springs On a 2021 Nexus Rebel 30R RV?
    You will not be able to use the SuperSprings # SS35ZR with the Firestone # F56ZR on your 2021 Nexus Rebel 30R motorhome as they both mount in the same location on the leaf springs. If you are wanting to use multiple systems you can combine the Firestone # F56ZR with either the Timbren # THSR001 or the SumoSprings # SS52FR. The Firestone attaches on the front section of the leaf spring while the Timbren and SumoSprings attach on the rear portion of the leaf spring. Personally I feel the...
    view full answer...

Do you have a question about this Vehicle Suspension?


Used Items Available
Image of THSR001
Image of THSR001
Image of THSR001

Condition: Stickered Incorrectly

Notes: There are scratches and paint chips on the brackets. Otherwise, new and unused. All hardware is included.

$621.74
Add to Cart
Secure Checkout

Info for this part was:

Employee Jacob T
Video Edited:
Jacob T
Employee Mary K
Updated by:
Mary K
Employee Wilson B
Updated by:
Wilson B
Employee Carrie F
Updated by:
Carrie F
Employee Lincoln B
Updated by:
Lincoln B
Employee Jonathan Y
Video by:
Jonathan Y
Employee John S
Video by:
John S
Employee Robert C
Installed by:
Robert C
Employee Aidan B
Installed by:
Aidan B

At etrailer we provide the best information available about the products we sell. We take the quality of our information seriously so that you can get the right part the first time. Let us know if anything is missing or if you have any questions.