bing tracking image
  1. Vehicle Suspension
  2. GMC
  3. Sierra
  4. 2005
  5. Timbren
FITS 2005 GMC Sierra
Timbren Rear Suspension Enhancement System

Timbren Rear Suspension Enhancement System

Item # TGMRCK25S
Retail:$316.90
Our Price: $269.36
You Save: $47.54
Vehicle Suspension
Confirmed to Fit
2005 GMC Sierra

1500 HD

1500 LD

2500 HD

Will this fit?

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

This item qualifies for Free Shipping
Shipping Weight: 9 lbs
Add to cart
zoom in icon
slider vertical icon
zoom out icon
Comment field cannot be left empty.
Name field cannot be left empty.

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

In Use/Installed

Customer Photos

Need help with installation?
Locate installers near me
The best technical support and full vehicle suspension installation instructions. Great price Sierra vehicle suspension and expert service. GMC Sierra, 2005 vehicle suspension by Timbren are available from etrailer.com. For expert service call 1-800-940-8924 to order your Timbren Rear Suspension Enhancement System part number TGMRCK25S, or order online at etrailer.com.
  • All Info
  • Reviews (5967)
  • Q & A (0)
  • Photos

2005 GMC Sierra - Timbren Rear Suspension Enhancement System

  • Jounce-Style Springs
  • Rear Axle Suspension Enhancement
  • Extra Heavy Duty
  • Timbren

6,000-lb Capacity. These hollow rubber springs sit above the rear axle to help stabilize and level your GMC Sierra. 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
    • 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: 6,000 lbs
    • Do not exceed the vehicle's weight-carrying capacity
  • Designed to work with a suspension system that is in good working order
  • Bump stop height: 5-1/8"
  • Spacer height: 7/8"
  • Limited lifetime warranty - satisfaction guarantee


An example of sag on a vehicle's rear axle under a heavy load

Whether you're hauling heavy loads in your bed or cargo area or you're towing a trailer, you will often see the rear of your vehicle sag while the front end rises. In these cases, the rear axle is handling not only the weight of the cargo, but also more of the vehicle's weight. Because less weight is on the front axle, the front tires are making less contact with the road. Overall 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.


Diagram of the Timbren spring installed

The Timbren system comes with custom-fit brackets that are bolted onto each frame rail above the rear axle. Hollow rubber springs are bolted to the bottom of the bracket and hang down to where the bottom of the spring sits, 1" above the axle. The inch of clearance allows the existing factory suspension to operate normally under light loads and standard terrain, ensuring the smooth, comfortable ride that you are used to.


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 are hauling off-center loads.


An example of a trailers swaying

Because the vehicle handles better with the springs, less turbulence will be passed along to the trailer, and this helps to keep the trailer in line. Your driving comfort is further enhanced if the trailer does begin to sway (from a gust of wind or a passing semi), because the movement from the trailer is not transferred to your vehicle. This also works to make the sway subside more quickly.


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. 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. And more elasticity allows for a more comfortable ride because the rubber has more travel.



GMRCK25S - Rear Suspension Enhancement System with Aeon Hollow Rubber Springs by Timbren

Installation Details TGMRCK25S Installation instructions

Customer Satisfaction Score:


Customer Reviews

Timbren Rear Suspension Enhancement System - TGMRCK25S

Average Customer Rating:  4.7 out of 5 stars   (5967 Customer Reviews)

6,000-lb Capacity. These hollow rubber springs sit above the rear axle to help 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:

These do their job well! I installed these on a 2006 Silverado 2500 with 250k on it. My rear springs were getting a bit weak and I wanted to help them out when towing my camper. These installed in about an hour but would have been quicker if I didn’t have rust to deal with taking out the old bump stops. The support they provided towing was great and made handling on bumpy roads much better. Solo my ride is a bit more harsh because my springs sag and these are in contact with the axle at all times. Unfortunately due to rust I can’t replace the leaf springs without it being a huge project so I deal with it. I’m very happy with these and would definitely use them again on another truck if needed.



by:

Im glad I installed these for towing our 5th wheel. I like not having to diddle with air bags. However, at slower speeds you can feel a difference on rough roads. At highway speeds on average roads I do not notice them.

Doug

12/31/2023

One year update: Timbriens are still doing great! I would buy them again. I would not want to tow a 5th wheel with out them.



by:
2008 Chevrolet Silverado

Installation was a breeze, removed old bump stops installed Timbrens in about 30 minutes. Haven’t put a load on them yet so I’ll update later. Installed on a 2008 Silverado 2500HD..



by:
2009 Chevrolet Silverado

I put these on my 2500 HD Silverado with a Bull Dog ATV carrier and towed a 6000 lb. camper into the mountains this weekend. With the Timbrens and an equalizer hitch, I never felt a better ride on the highway towing before. These are much better than the air bags and no maintenance. My atv rack ways 300 lbs in the bed of the truck and the ride empty was not rough at all.



by:
2004 Chevrolet Silverado

Great product, SO easy to install if there was a hard part i guess it would be getting the old bump stops off. I have an 04 Silverado 2500HD we have a 94 Elkhorn truck camper. These new Timbren springs took all the rock out of the ride. With out the springs suspension sagged 3 inches with the springs it only sags 1.5 inches witch is the gap to the axel from the spring. I used the spacer that was included. Product comes with all new hardware. I can get over how easy the installation was. Stock ride of truck remained the same after installation too.



by:
2008 Chevrolet Silverado

Finally received them. The OEM bump stops were difficult to get out, since theres only nut on the top side of the flange and none on the bottom. I used a Sawzall to aid. Installation was easy. HAve't drove with them yet but sonce I left the suggested 1" gap between the Timbren bottom and the top of the axle, all should be well.



by:

Best investment for my suspension. I have had them for over a year and haven’t broken any springs these were my third set of springs. I can fit 7-1/2 yards of wood chips on a full load averaging 6200 lbs. and tow a 6800 lbs chipper!!!



by:

Not as good as Sumosprings. The Tibrens on the rear of my truck are way too stiff, and don't have a gradual compression. It's like riding a rigid frame

Etrailer Expert

Jenny N.

6/6/2022

Since the springs are not an adjustable spring, some people feel that it does create a stiffer ride when not towing with a load on the truck. For a 2004 Chevy Silverado there is several alternate air bags available. I recommend taking a look at part # F2250 from Firestone. It works with 2 or 4 WD and with in bed hitches.



by:

The installation was on a 2009 Silverado 2500 HD 4X4 and the product fit perfectly! Installing them was a snap! They really made a difference when towing my 5th wheel RV.



by:
GMC

The springs have eliminated the squat and have softened the suspension while towing. While unhitched, the rebound is very limited and a bit tough going over bumps or pot holes. I have to admit I installed the additional “hockey pucks” that came with the kit. If I remove them and just install the springs, the rebound would be increased and soften the ride. My tow vehicle is a GMC 1500HD. The installation was very simple. I am very satisfied with this product. If you are finicky with ride quality and do not mind spending more money, try the airbag kit.



by:

I’ve used Timbren suspension products on over 5 vehicles that I tow with. 100% happy with performance, ease of installation, product quality and durability, and improved vehicle handling. All of which leads to peace of mind on the road. I chose Timbren over air bags due to cost, simple parts, and not having to worry about compressor failure or air issues. If I’m unloaded, Timbren suspension is off the bump stop and ride quality is great. When I’m loaded, Timbren suspension engages and I get on down the road. No need to play with air pressures and potential system failures. I highly recommend this product. Always ensure vehicle fitment so you get the correct Timbren system for your application.



by:

Perfect, fixed sagging problem when pulling dump trailer



by:
2007 Chevrolet Silverado Classic

Use on my 3/4 ton with an in bed salt spreader. Works great!



by:

These were exactly what I needed they only get used when you have a heavy load so there is no change to the ride quality, very heavy duty and well made. I also purchased front ones for my truck because I use it for plowing and made the truck so much better when having the plow attached, I highly recommend, also there were both pretty easy to install.

Steven R.

11/26/2022

After one year still exactly what I needed, I had to completely redo the frame on my 2001 Silverado and the bump stops are still in perfect condition I will be reinstalling them as soon as done with the frame, and I still would highly recommend these



by:

Easy to install, works as advertised. Highly recommend



by:
Nissan Leaf

I carry a few more tools in the back of my truck than the average person does. My main leaf springs, just touch the overload springs in my day-to-day activity. I wanted to lift the truck up just enough to reposition my springs into the unloaded position.

Then when I hooked up our 9,000 lbs. travel trailer the springs would be in a better position to handle the additional load. The Timbren enhancement system worked just the way I had hoped. I would recommend these to anyone who might want to do the same thing that I did.

Joe

5/18/2017

After one year of pulling our TT the Timbren springs are working just like the day they were installed. I cant see any compression of the springs after 15,000 miles of towing. I would recommend these springs to my friends.



by:

Removed my old air bags after fighting leaks for 6 months. Installed the solid rubber TGMRCK25S. Truck rides a little stiffer,but the body roll has been almost eliminated. Lot more stable in turns. My truck is a bit overloaded with my camper but is level and not mushy as before. Great product.

Buz E.

7/17/2020

Ive had the TGMRCK25S instled for over a year now and couldnt be happier. I have a 2007 GMC 2500HD with a Artic Fox 990 cab over camper. The body roll is minimal and overall stability ks greatly improved. Great product.



by:
2016 Chevrolet Silverado 2500

I installed a set of these on my 2016 R 2500 to control body roll when hauling my slidein camper. It completly eliminated the body roll when loaded and improved ride when empty. It is very easy to install and works better than described. Both sets arrived within 2 days of order. Another benefit over airbag system is if your truck is on rack for repair the timbren will not be damaged when truck is raised on lift.

Don

12/28/2018

I am completly satisfied with the timbren suspension aid. It stopped the body roll on my truck wirh my slidein camper on. Thanks for selling a quality product.



by:

Not Made in China! but from our neighbors up North. Good quality and easy installation on a 2008 Chevrolet Silverado HD Duramax 4X4. Installed the kit with the additional round block that is barely resting on the rear axle. I purchased the kit to avoid heavy trailer tongue weight that was causing an uneven vehicle stance. Haven't had a chance to road test yet. I hope is doesn't affect the factory ride.

Etrailer Expert

Sierra K.

10/7/2021

If you do test it without a full load and the ride is too rough, you can remove the spacer.



by:
2003 Chevrolet Silverado 2500

I installed this on my 03 GMC 2500 Duramax ex cab Long bed. The reason for the installation was, when pulling my 35 foot Hitchhiker 5th at night my headlights
at low beam were too high and causing problems for oncoming traffic,. This was
caused by deflection in the rear springs. The installation corrected the problem.
I carry tools and other equipment in a 29x56 inch in bed tool box that is mounted
in the front of the bed, the box loaded weight I would estimate 135lbs. There is
also a 20k Reese hitch which is mounted in the bed and I would estimate the weight with the mounting rails as around 100lbs, with there combined weight
empty ride is like axle is a solid hookup to the frame via the rubber bumpers.



by:
Chevrolet Silverado 2500

The Timbrens gave me about 1/2" lift assistance with a 2200# load in my Chevy 2500 pickup. I recently changed to a 5th wheel with 2500# hitch weight. I was very pleased that the Timbrens where sufficient to keep the truck level and I did not need to install air bags. This is my second set of Timbrens. The first I bought at a local shop and had them install them. I bought the latest set from etrailer, and they were very easy to install, and I saved about 30%.



by:

Service was excellent and great assistance in picking the right product.



by:

The product serves it's purpose by transferring the load directly to the axle. Thereby bypassing your suspension system. As expected, this removes sway and stabilizes the towing experience. While that is ok, this also transfers vibrations and bumps encountered from road conditions, that are normally mitigated by shock absorbers, directly into the ride experience. But due to the tough rubber composition, this is minimized. Be aware, however, that loads directly transmitted to the rear tires without shock reduction can increase the stress on them resulting in a higher potential for damage if they are older. Might accompany this product with fresh tires.



by:

I recommend it for your truck!! I bought it for my 1/2 ton 2006 silverado 1 year ago. Even tho he had 3 leaf spring and a helper in each side.. when a was towing my 2 axles enclosed trailer it made a significant difference.

I have a 3/4 ton now. With 5 leaf spring and a helper. I haven't bought some for this one, but i will be looking into it depending on my need's in the future...



by:
2003 Volkswagen CC

I have a 2003 GMC 2500HD Duramax 4x4 CC. I put on super springs when the truck was new. I pull a Alpenlite 5 wheel, with a pin weight over 2300 lbs
I wanted to change from super springs to timbrens to loose weight and retain support for suspension.
I installed timbrens without the spacer and they rested on the axle pad. The ride wasn’t awful but more harsh then with the super springs. I reinstalled the super springs and this gave me an
1 1/4” space from timbrens and axle. I haven’t pulled the 5 th wheel yet. I think with both on should help with sag.


25
3613
Show More Reviews

See what our Experts say about this Timbren Vehicle Suspension

  • Timbren Kit Recommendation for 2006 Chevy Silverado 2500HD
    You would definitely want to go with the Timbren kit part # TGMRCK25S for your 2006 Chevy Silverado 2500HD over the other kit you mentioned. The other kit is for severe service applications so it would give you a pretty harsh ride quality. The # TGMRCK25S will give you the support you are wanting without killing the ride quality.
    view full answer...
  • Timbren Suspension Enhancement Fit For 2005 Chevy Silverado 2500 HD
    While we do have an option for Timbrens that fit a 2005 Chevy Silverado 2500 HD, the part you mentioned is not a fit for that model truck. The correct fit for your Chevy is the following: - Timbren Rear Suspension Enhancement System # TGMRCK25S The # TGMRCK25S will fit both the 2WD and 4WD models of 2500 HD to help level the truck while minimizing body roll and sway.
    view full answer...
  • Will Timbren Rear Suspension Kit # TGMRCK25S Fit 2003 Chevy Silverado 1500 2WD
    Yes, the Timbren Rear Suspension Enhancement System # TGMRCK25S is confirmed to fit your 2003 Chevy Silverado 1500 with 2WD. These durable Aeon rubber springs will provide up to 6,000 pounds of load support and simply replace the factory bump stop for an easy installation. All the needed hardware is included. I have attached an installation video that you can follow along with.
    view full answer...
  • Timbren Rear Suspension Enhancement System for a 2003 Chevrolet 2500 HD Silverado
    The correct kit for your 2003 Silverado, 2500 HD with long Bed, is the Timbren Rear Suspension Enhancement System, # TGMRCK25S, which is the correct kit for 2 and 4 wheel drive models. We have a video installation that should be helpful and installation instructions for you to look over, see links. The kit you referred to is designed for 2500 Service vehicles only. Another option for your vehicle is the SumoSprings Custom Helper Springs Kit, # SSR-201, which is a good option if your truck...
    view full answer...
  • Suspension Enhancement for a 2005 Chevy Silverado 2500HD Diesel and Different Trailer Types
    To start, adding a suspension lift on your 2005 Chevy Silverado 2500HD is going to require either a custom suspension enhancement kit or spacers because using a regular suspension enhancement kit on a suspension lifted vehicle would mean the helper springs would not engage when they are supposed to. Adding a lift can also make the towing capacity unknown (most likely lowers it) so I would not recommend it. Considering that you tow different loads the best option would be to go with air...
    view full answer...
  • Suspension Enhancement for 2002 Chevy Silverado 1500 That Leans to Left
    If your 2002 Chevy Silverado 1500 is leaning to the left, I assume you have come to us because you are carrying a heavy load and this is when it is occurring. If so, we have exactly what you need to fix the issue; if it is happening at all times you will need to take your truck to a qualified mechanic to diagnose the problem. Should your truck be leaning under a load the issue can be resolved with the Timbren Rear Suspension Enhancement System # TGMRCK25S which work to absorb the weight...
    view full answer...
    Image 1 for
  • Suspension Enhancement to Fit 2002 GMC Sierra Denali Extended Cab with Quadrasteer
    I confirmed with Timbren that the correct kit for your 2002 GMC Sierra Denali is # TGMRCK25S. It will fit with your extended cab and work great with the Quadrasteer.
    view full answer...
  • Recommended Suspension Enhancement System For 2003 GMC Sierra 4X4 With Quadrasteer
    For a suspension enhancement system that will not interfere with the ride of your 2003 Sierra when empty I recommend the Timbren Rear Suspension Enhancement System, part # TGMRCK25S. This replaces the axle bump stops on your truck, and per my contact at Timbren does not interfere with the Quadrasteer system. These springs require no maintenance and act independently for off-center loads in the rear of your truck. The become more rigid when additional weight is added to the truck. I have...
    view full answer...
  • Timbren Rear Suspension Enhancement Options for a 2005 GMC Sierra 1500
    I have the perfect set of Timbren Rear Suspension Enhancements for your 2005 GMC Sierra 1500. If you have a light-duty (LD) version you will want to use part # TGMRCK15S and if you have the heavy-duty (HD) version you will want use part # TGMRCK25S. Rest assured, you do not need to be a mechanic to install these jounce bumpers on your vehicle. The light-duty (LD) version only requires one bolt to be removed in order to mount them to the vehicle and the heavy-duty (HD) version only requires...
    view full answer...
  • RoadActive Suspension Enhancement for 2004 GMC Denali with Quadrasteer
    I have an option for you, but the RoadActive Suspension Custom Leaf Spring Enhancement Kit # RAS4611 is not compatible with the Quadrasteer system on your 2004 GMC Sierra Denali. Your best bet and the only confirmed suspension enhancement solution that won't interfere with your Quadrasteer components, is the Timbren Rear Suspension Enhancement System # TGMRCK25S. These hollow rubber springs sit above the rear axle to help stabilize and level your Sierra.
    view full answer...
  • What Position to Set Up Pivot Arms on B&W Patriot 5th Wheel Hitch
    Where you'll attach the pivot arms on the B&W Patriot # BWRVK3255 just depends on how much clearance you need from the cab of the truck, but in most cases you'll be just fine using the closest setting to the cab. You'll want to make sure that the hitch height is in the 50-1/2" area before the trailer is coupled to the 5th wheel hitch; any squat that you're experiencing afterwards should be negligible as long as your suspension system is in good working order. If you do couple the trailer...
    view full answer...
  • What Timbrens Fit The 2007 GMC Sierra Classic 3500 Old Body Style Dually
    I did contact Timbren on your behalf who confirmed the Timbren Rear Suspension Enhancement System # TGMRCK25S will fit your 2007 GMC Sierra classic, 3500 Dually with the old body style.
    view full answer...
  • Does the Capacity of Suspension Air Springs Exceed the Payload of a 2009 Chevy Silverado 2500HD
    I do not want to question the owners manual of your 2009 Chevy Silverado, but 2,500 pounds payload capacity sounds awful low. Especially for a 2500HD Duramax diesel. I did some research and found that it should have a payload ranging from 3,481 pounds up to as much as 3,924 pounds. I would call a dealership and have them run the VIN to determine what the payload is. If it ends up being closer to what I found, then the Firestone Ride-Rite Air Helper Springs, # F2250, would be beneficial....
    view full answer...
  • Jounce Suspension Enhancement Springs on a 2005 Chevrolet Silverado w/ 6 Inch Lift
    For your 2005 Chevrolet Silverado we have the Timbren Rear Suspension Enhancement System item # TGMRTT15S. These have a 7,000 lbs capacity and the hollow rubber springs sit above the rear axle to help stabilize and level your Silverado. To accomadate the gap caused by your six inch lift you will need the Timbren 1" Spacer For Raised Frame Vehicles item # A25723-90AH00. The recommended gap between the bottom of the jounce bumper and top of the contact point is 1" but you can have a larger...
    view full answer...
  • Timbren Rear Suspension Enhancements for a 2004 GMC Sierra 1500 AWD Denali
    As long as the distance from the center of each bolt hole on the bump stop of your 2004 GMC Sierra 1500 AWD Denali is 4-1/2" then the Timbren Rear Suspension Enhancement System part # TGMRCK25S will work for you. In order to install them on your vehicle, you will first need to remove the factory bump stops. This can be done by removing the two nuts located on top of the bump stop on the inside of the frame rail. It may be necessary to soak the nuts in a penetration compound such as WD-40...
    view full answer...
  • Where Does Timbren Suspension Enhancement Install on a 2007 Chevy Silverado Classic
    The Timbren Rear Suspension Enhancement System, # TGMRCK25S, mounts to the bottom of the frame rail, not to the outside of the frame rail. Under load the bottom of the Timbren spring should only contact the axle. I have included a link to the installation details for you. I have also included a link to our FAQ article on Timbren systems. This system is designed to fit HD models only. If you do not have an HD model, you would use # TGMRCK15S.
    view full answer...
  • Spacer Recommendation for a 2006 Chevy 2500HD with a 2 in Lift Installing Timbrens
    What you would want to use is a Timbren Spacer for Raised vehicles # A25723-90AH00. This spacer is 1 inch thick so you would want to use two of them since you have a 2 inch lift. For the rear you would want the Timbren Rear Suspension System # TGMRCK25S, for the front you would want the Timbren Front Suspension System # TGMFK25S. Since you will need 2 spacers per Timbren and you plan on putting them on the front and rear axles is looks like you would need a total of 8 spacers.
    view full answer...
  • Suspension Enhancement Recommendation for Towing a 5th Wheel Trailer with a 1999 GMC Z71 Sierra
    The only option we have at this time for your 1999 Sierra 3 door extended cab short box Z71 with 3 inch lift is the Timbren Vehicle Suspension. You will need the Timbren Rear Suspension Enhancement, item # TGMRCK25S, along with a custom kit to accommodate the 3 inch lift. To order the custom Timbren kit you will need to call etrailer.com Customer Service department, see link, with the following information at hand: Year, make, and model of your vehicle Whether it is 2-wheel or 4-wheel...
    view full answer...
  • Will the Timbren Rear Suspension Enhancement System Fit a Lowered 2001 Chevy Silverado
    The overall height of the Timbren Rear Suspension Enhancement System part # TGMRCK25S is 7-1/4" with the included spacer installed or 6-1/4" without the included spacer installed. If the 6-1/4" is too tall for your lowered 2001 Chevrolet Silverado you can use the SumoSprings Solo Custom Helper Springs part # SSR-209-40 for 1500 or part # SSR-211-54 for 2500/3500 models. If you take a bread knife, you can trim these down to fit the space you need them to.
    view full answer...
  • Comparing Timbren Kits GMRCK25S & GMRCK15S for 2003 Silverado 1500 ZR71
    Timbren kit # TGMRCK25S fits the 4WD version of your Silverado 1500LD while kit # TGMRCK15S fits the 2WD version. These kits provide progressive resistance when under load to help stiffen and support your OEM suspension, especially useful for cargo loads in the bed, but they do not add weight capacity to the vehicle. Rear-end sag from pulling a travel trailer is best handled by a weight distribution/sway control system rather than a set of jounce springs. A properly-tuned WD/SC system...
    view full answer...
  • Will the Timbren Springs # TGMRCK25S Work on a 2001 Chevy Silverado 1500 with Firestone Air Springs
    I spoke with my contact at Timbren, and he said that the Timbren suspension can work with the Firestone air springs as long as there is room to mount the rubber springs above the rear axle. The Timbren rubber springs will replace the axle bump stops on the vehicles frame. As long as you still have the bump stops on your 2001 Chevrolet Silverado 1500, you will be able to use the Timbren Vehicle Suspension, part # TGMRCK25S. If the bump stops have been removed then the Timbren suspension...
    view full answer...
  • Will Timbren Spring, Part # TGMRCK25S, Fit 2009 GMC Sierra with Turnover Ball and 5th Wheel Hitch
    My contact at Timbren confirmed that their Rear Suspension Enhancement System, part # TGMRCK25S, will work with your 2009 GMC Sierra that is equipped with a BandW turnover ball and 5th wheel hitch. Since this kit installs in the same location as the stock bump stops (which are removed) there will be no clearance issues with your hitches. This kit includes the rubber springs, mounting brackets and required hardware and installs without drilling. Please note that this suspension kit does...
    view full answer...
  • Timbren Suspension System Recommendation for a 2005 Chevy Silverado 1500
    The Timbren suspension system part # TGMRCK25S that you referenced is the correct system for your 2005 Chevy Silverado 1500. For the 1500 crew cab model you would not need to use the spacer, but you can still measure if you like to be certain.
    view full answer...
  • Recommendation for Sag at Back of 2004 Chevy Silverado 1500 When Towing
    The first thing I recommend doing is checking out the max towing and payload weights for your 2004 Chevy Silverado. These can be found in the owner's manual and I do not recommend exceeding them as that can cause premature wear to your suspension as well as elsewhere on your truck (like the engine). For your application I recommend adding suspension enhancement. This won't increase the amount of weight that you can carry but it will help to improve your loaded ride quality and take out...
    view full answer...
    Image 1 for


< Previous
123. . .4



Do you have a question about this Vehicle Suspension?


Info for this part was:

Employee Mike L
Expert Research:
Mike L
Employee Robert G
Expert Research:
Robert G
Employee Michael H
Expert Research:
Michael H
Employee Jeff D
Expert Research:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee John H
Expert Research:
John H
Employee Adam R
Expert Research:
Adam R
Employee Lori W
Expert Research:
Lori W
Employee Rachael H
Expert Research:
Rachael H
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Joshua S
Video by:
Joshua S
Employee Kathleen M
Video by:
Kathleen M
Employee Jonathan Y
Video by:
Jonathan Y
Employee Nicholas E
Test Fit:
Nicholas E
Employee Robert C
Test Fit:
Robert C
Employee Jacob T
Video Edited:
Jacob T
Employee Sue W
Video Edited:
Sue W
Employee Chris R
Video Edited:
Chris R
Employee Cole B
Installed by:
Cole B
Employee Mary K
Updated by:
Mary K
Employee Wilson B
Updated by:
Wilson B
Employee Michael B
Updated by:
Michael B
Employee Noah M
Updated by:
Noah M
Employee Carrie F
Updated by:
Carrie F
Employee Bethann B
Updated by:
Bethann B

At etrailer.com 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.


Product Experts Available Now!
Call 1-800-940-8924