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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
THIS ITEM IS NOT A FIT FOR
2017 Mercedes-Benz GLC
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Timbren

Timbren Front Suspension Enhancement System

Part Number: T29UV
In Stock
$269.36
Retail:$316.90
You Save: $47.54
Vehicle Suspension
Not Confirmed to Fit

2017 Mercedes-Benz GLC

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6,500-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 T29UV can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Timbren Vehicle Suspension - T29UV

  • Bump Stops
  • Towing/Load Leveling
  • Front Axle Suspension Enhancement
  • Timbren
  • Extra Heavy Duty
  • Suspension Only

6,500-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.


Features:

  • Improves suspension, handling and safety
  • Provides additional support as needed so you always have a smooth, comfortable ride when towing or hauling gear
    • Allows the leaf spring ample movement while cushioning light loads
    • Becomes more rigid as more weight is added
      • Increases stability - providing great performance while hauling heavy loads
      • Reduces vehicle sag
  • Works independently - side-to-side
    • Helps compensate for off-center loads
    • Reduces body roll when swerving and turning corners
  • Acts as shock absorbers, taking the brunt of bumps and rough roads
    • Extends the life of your vehicle's suspension


Specs:

  • Includes 2 Aeon hollow rubber springs, vehicle-specific brackets and hardware for simple installation
    • Replaces axle bump stops on frame
    • No drilling required
  • Capacity: 6,500 lbs
    • Do not exceed the vehicle's weight-carrying capacity
  • Designed to work with a suspension system that is in good working order
  • Limited lifetime warranty - satisfaction guarantee


Reduced axle sag with Timbren suspension enhancement

Just like the rear of your vehicle will sag under the weight of a fully loaded bed, the front of your vehicle will sag when under the burden of heavy equipment such as a snowplow. In this case, the front axle is handling not only the weight of the equipment, but also more of the vehicle's weight. Overall vehicle handling - traction, steering, and braking - is negatively affected. But the resistance from Timbren's Suspension Enhancement System works with your factory suspension to keep your vehicle level and improve your driving experience.


Install diagrams of Timbren hollow rubber springs

The Timbren system comes with custom-fit brackets that are bolted onto each frame rail above your front axle. Hollow rubber springs are bolted to the bottom of the bracket and hang down so that the bottom of each spring touches the axle. Because each spring is making constant contact with the axle, it is always working to cushion and support your factory suspension.


Animation of a standard Timbren rubber spring

Timbren Suspension Enhancement Systems are designed to work progressively. When the hollow rubber springs are compressed, the convoluted design causes them to quickly collapse along the folds. Once the folds are compacted, the stacked barrel shape increases resistance, stiffening the suspension and keeping your vehicle level.


Timbren suspension system works to prevent body roll

Each hollow rubber spring works independently to support the driver's-side or passenger's-side of your vehicle. This is helpful when you swerve or make sharp turns. Each spring is activated when it is needed, so body roll is greatly reduced. The independent action also works well when you're carrying off-center loads.

A snowplow mounted to the front of the truck will require extra suspension support for the front axle.

Timbren's Suspension Enhancement System will help raise the front end of your vehicle when you're using heavy equipment like a snowplow. This ensures that your headlight beams will be pointed in the right direction and tire wear will be reduced. If the plow is off-center or has an extension, the springs will automatically compensate for this as well.

An empty truck on a bumpy road without Timbren

Another great feature of the rubber construction is that the springs absorb most of the road shock, creating a smoother, more stable ride overall when loaded. Wear and tear on the factory suspension is also lessened because the rubber springs work to prevent bottoming out on rough roads.


Timbren Suspension Enhancement Compared to the Competition

Timbren's Suspension Enhancement Systems are much easier to install than air springs - there are no air hoses to run, no compressors or gauges to hook up, and no manual adjustments to make. The rubber construction makes Timbren's springs more elastic than similar products constructed of microcellular urethane. More elasticity allows for a more comfortable ride when loaded or towing because the rubber has more travel.



MBFSP35A - Front Suspension Enhancement System with Aeon Hollow Rubber Springs by Timbren

Installation Details T29UV Installation instructions

This Product Fits The Following Vehicles




Video of Timbren Front Suspension Enhancement System
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 Review of Timbren Vehicle Suspension - Towing/Load Leveling - T29UV

Hi everyone. Steve here with etrailer. Let's take a look at a timber and front suspension enhancement system. Now these are made to fit 2019 through current year Mercedes-Benz Sprinters, both the 25 and 3500 series. That being said, make sure you're double checking the fit guide over at etrailer.com to be sure you're getting the right parts the first time, excuse me. Now these are gonna improve your suspension, your handling, and your safety.

They are made from an Aeon rubber spring. It's a hollow rubber. They're vehicle specifics and they are a pretty simple installation. As you can see, there's not much here to them. These are gonna allow your leaf spring ample movement while, yet, cushioning light loads, and these can become more rigid as more weight is then added to your suspension and your load.

So again, they're gonna give you great performance. Again, these will get tighter when they need to and everything automatically. They're gonna help reduce vehicle sag. These, again, are for the front of that vehicle. We do carry these for the back as well.

So make sure you're getting the complete package that's gonna fit and optimize your ride overall. And that will wrap up our putting it together folks. I'm Steven. Thanks for watching, and have a great day.

Ratings & Reviews

4.7

772 reviews
5 Stars
(617)
4 Stars
(110)
3 Stars
(15)
2 Stars
(6)
1 Star
(24)
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by:
Great ordering, shipping time, cost, and supporting information. We added a snow plow and the product did everything as advertised.
Kate F. profile picture
Etrailer Expert

Kate F.

3/26/2026

Glad we had the right fit for you Tom! Where are you located, and how much snow did you get this last season?

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..
Heather A. profile picture
Etrailer Expert

Heather A.

5/8/2026

I hear you, and that makes sense based on what you’re describing. If the Timbrens are in constant contact, they’re basically always engaged, which is why the front end feels so stiff instead of only firming up under load. You might actually be a really good candidate for SumoSprings part # SSF-281-47 (as long as your truck is a 2WD) They’re a similar concept but made from a softer, more progressive material, so they compress more gradually instead of feeling like a hard stop. That usually gives you support when you need it without taking away all the ride comfort like you’re experiencing now. Glad to hear the install went smoothly and the quality was there, that’s pretty typical with Timbren, it just comes down to how they behave on your specific setup. What were you mainly trying to improve up front, sag, handling, or just a smoother ride overall?

Jess profile picture

Jess

5/8/2026

@HeatherA I wanted to improve the ride. Im guessing there is sag i was unaware of. I expected the timbren to be a bit more progressive in it softness?? I didn't think the rubber would be in direct contact withe the spring 100% of the time. I only have 56,000 on this truck. So little use but 20 years old. Next weekend we take it for a 300 mile trip and ill determine if there going to be removed or not. Is there a return policy if satisfactory performance is not met?
by:
2017 Chevrolet Silverado 2500
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:
2006 Winnebago Sightseer Motorhome
For me surprisingly easy to install at 67 years old. Had immediate handling improvement and steering control.
Nick S. profile picture
Etrailer Expert

Nick S.

11/10/2025

That is great to hear! I am glad you were able to feel the difference right away. I am happy to hear that you were able to get them installed easily as well.

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:
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:
1998 Chevrolet Blazer
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:
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
Brooke M. profile picture
Etrailer Expert

Brooke M.

7/9/2025

Happy to hear that, Dan! Thank you for sharing all the photos, too. What are you towing now that you have a some extra suspension support?

Dan G. profile picture

Dan G.

7/9/2025

We tow either a Honda Pilot or SantaFe on a tow dolly
Brooke M. profile picture
Etrailer Expert

Brooke M.

7/11/2025

@DanG Ooo nice! Been on any trips recently?
by:
2025 Ford F-550 Cab and Chassis
Kit was used on 2025 Ford F 550 Install was easy enough, worst part was getting factory bump stops off. Had to use a little grease to keep washer in place before I started nut. Used the supplied spacer ended up raising front of truck a 1/2 inch without spacer it wouldn’t have been in contact with axel. Will adjust my review after I’ve hauled our camper a trip or two.
by:
2023 Ford Transit Connect
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:
2022 Ford E-Series Cutaway
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:
2023 Ford F-53
Easy installation ,took less than 30 minutes. Helped with the body roll while driving in the wind, or when being passed by big trucks.
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:
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:
Nissan Leaf
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:
2008 Winnebago Vista Motorhome
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
Scott profile picture

Scott

3/23/2026

Still working fine, the truck’s suspension has settled now the the ride is even bettet

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).
Bobby L. profile picture

Bobby L.

5/10/2020

The timbren springs are working out better than expected. I installled new Monroe matic RV shocks front and rear on my 2006 Chevy Silverado 1500 just prior to putting the timbrens on the front and the sumo springs on the rear and the ride is great especially with a load or hauling my travel trailer and the ride is just as smooth empty. I highly recommend the timbren and sumo springs because they fit by application and there is nothing additional to buy. Thanks etrailer.

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
Jeffery profile picture

Jeffery

8/4/2023

I have upgraded towards trailing with my truck camper Artic Fox 990. I have not had the time to reach to etrailer for a solution with my 1998 Dodge 2500 timbrens installation. I have a new addition and will install the timbrens on a F-550 to have the same travel assurance...Pre trip test run to Key West early this winter... Anchorage 2024 Spring...Thank you etrailer

by:
Have them on several trucks now and couldn't imagine running snow plows without anymore.
by:
The front Timbren are working very good.The rear not so good
by:
2010 Dodge Ram Pickup
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.
Ron H. profile picture

Ron H.

5/24/2020

Working GREAT!!!!

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.
Gabriel profile picture

Gabriel

2/23/2026

Still going strong. The ride is a little bumpy but when I tow the truck doesn’t feel “squishy” whenever I make my turns. I’m still super happy about the product.

by:
A+++ Excellent product and customer service. Bought both front and rear suspension enhancements and worth it. Highly recommend.
Samuel profile picture

Samuel

11/28/2025

Great product. Very solid and holding up well in my motorhome. My friend has sumo springs and they have a softer ride, but they had to be replaced after a few years, due to his weight distribution. Mt Timbrens seem much stronger. A little bit firmer ride, but the shocks balance that out. I would buy them again.

by:
I like using Etrailer because i can call and talk to a person. These front ones went in pretty easy just like directions said. and they got rid of the bad bumping sound in my front end after hitting a bump. smoothed things right out.
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Info for this part was:

Employee Steven C
Installed by:
Steven C
Employee Wilson B
Edited by:
Wilson B
Employee Dawn Z
Written by:
Dawn Z

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