bing tracking image
  1. Vehicle Suspension
  2. Timbren
  3. Jounce-Style Springs
  4. Rear Axle Suspension Enhancement
  5. Extra Heavy Duty
Timbren Rear Suspension Enhancement System

Timbren Rear Suspension Enhancement System

Our Price: $252.45
You Save: $44.55
Vehicle Suspension

Will this fit?

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

Shipping Weight: 5 lbs
Add to cart
In Stock
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
8,600-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. Great Prices for the best vehicle suspension from Timbren. Timbren Rear Suspension Enhancement System part number TGMRCK15S can be ordered online at or call 1-800-940-8924 for expert service.
  • All Info
  • Reviews (5750)
  • Q & A (0)
  • Photos

Timbren Vehicle Suspension

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

8,600-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.


  • 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
  • Includes 2 Aeon hollow rubber springs, vehicle-specific brackets and hardware for simple installation
    • Replaces axle bump stops on frame
    • No drilling required


  • Capacity: 8,600 lbs
    • Do not exceed the vehicle's weight-carrying capacity
  • 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.

GMRCK15S - Rear Suspension Enhancement System with Aeon Hollow Rubber Springs by Timbren

Replaces Timbren TGMRCK15E

Item # TGMRCK15S

Installation Details TGMRCK15S Installation instructions

This Product Fits The Following Vehicles

Customer Satisfaction Score:

Customer Reviews

Timbren Rear Suspension Enhancement System - TGMRCK15S

Average Customer Rating:  4.7 out of 5 stars   (5746 Customer Reviews)

8,600-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.

2018 GMC Sierra 1500

I know it will be lovely when loaded or the trailer on. However,it rides like a wagon empty with brand new premium shocks and struts empty. Thud thud thud. You really cannot feel the shocks or suspension. Found exact same item plentiful for 60 bucks on eBay after I bought these for 250. I may cut these in half or put air bag on. I do not like the ride empty. No hard feelings. It is a good product maybe just not for me.

Etrailer Expert

Brooke M.


Dont cut the springs, if you havent already! Doing so would void your warranty. The Timbren springs will definitely make for a rough ride when driving unloaded. If you arent constantly hauling, I wouldnt go with Timbren. I want to suggest part # SS45MR. These SumoSprings are a one and done install like your Timbrens but they are made from a much softer material compared to the hard rubber of the Timbren. They also have a similar price point. These will go on like the Timbrens and engage underload, but riding unloaded will be a much more enjoyable experience with the SumpSprings.

2013 Chevrolet Silverado

From Mickey Mouse to Mighty Mouse in minutes. Pulling a 7700lb travel trailer with a 2013 Silverado w/ tow package and h/d cooling. Even with W/D hitch truck was bouncing uncomfortably. The Timbrens were an instant fix. Dips in the road are no longer a problem, and I think the sway control in the hitch seems to feel more solid as well. Unloaded ride is unchanged except for really major dips (and Texas roads have a few). If you are like me and take your truck to places your Mom would not recommend, a good underbody wash and glasses to catch any falling junk during the install are highly valued

Larry S.


Still a happy camper after a year, and rolling along comfortably. Towing time has increased and timbrens still smooth.


This Rear Suspension Enhancement kit were so easy to install, I was almost sure I missed something.
They installed in less than an hour. I was able to place my floor jack under the ball mount to raise the rear end enough to remove the old mounts and simply install the new ones.
Hooked up my 28' rv to my Silverado 1500 and they worked as advertised. No front end sag and I feel safer towing it.
Customer service helped me find the right product I needed without dishing out a lot of cash!



While I have sold this vehicle since this review to my neighbor, she has told me she loves this product when she pulls her rv. I now have a 34 ton pick up and purchased a set for it. I am very satisfied with the Enhancers i purchased for it!

2021 GMC Sierra 1500

I just installed these on my 2021 GMC Sierra 1500 AT4. It was really easily done and only took .5 hour total. Because the AT4 is slightly lifted I did use the spacers review separately. I am towing a pretty heavy 2 axle horse trailer with a tongue weight between 6000 and 7000 pounds which the truck can handle. When I hitched up with the original bump stops the hitch dropped 4", the frame over the rear tires squatted down 2 and 3 quarters " and the frame over the front tires lifted 3 quarters". After the installation the hitch dropped only 2 and 3 quarters", the frame over the rear tires squatted down 1 inch" and the frame over the front tires lifted . Test drive went well with the same smooth ride with no load as there is no contact. Pulling the trailer went just perfect, no sway due to the trailer design, and the load was very stable with very little bounce.

2020 GMC Sierra 1500

I can't wait to use these and see how they actually work with my 29' x 7.5' wide snowmobile trailer.

For reference to those with an AT-4 GMC, I have a 2020 and with a 1/2" spacer and the timbren (it was actually only 4 1/2" tall, not 5" like the images showed) have about 1.25" gap between the bottom of the timbren and the axle stop when unloaded. I was under the impression that the timbren itself was 5" based on the image in the kit on the website, #tgmrck15s, so I'm a 1/2" shorter than I wanted but I will run it for a while and see how it looks when loaded with my trailer before going any thicker with a spacer.

2011 GMC Sierra

Added these Timbrens with two 1" spacers on each side on a 2011 GMC Sierra with a 2" lift. Fit great, easy to install. Was more work getting old bump stops off than installing the new Timbrens with spacers. I did need to get 2" longer bolts than what was included to complete the install, but that was to be expected.

2015 GMC Sierra

Received yesterday (quick shipping!), installed today on 2015 GMC Sierra 1500 4WD Crew Cab short box. What a difference between the Timbren's and OEM bump stop from GMC. Installed for towing large travel trailer. Used floor jack under rear hitch to raise up truck to get enough room for socket to install bolts. Use 10mm socket to remove OEM bolt & bump stop, use 17MM socket to install new bolt and Timbren. Very east installation process.


Etrailer expedited the package early due to returning customer. Parts delivered in double packaged boxes. Installed in 1/2 hour after fighting the old rusty bolts. Have not had a chance to load test yet. Will give another follow-up review after truck and trailer are loaded.

2014 Chevrolet Silverado 1500

Great product easy to install, took me longer to take the tire off and on than install the product. I hooked up the truck to the trailer and before it stood at 39 inches and when hooked up it dropped to 37 1/2 from the floor to the wheel weld. Overall ride is comfortable with an empty truck load. Purchesed Sunday and was delivered by Wednesday. Great product

2019 Chevrolet Silverado 1500

Real nice product. Added them to my 2019 Silverado to better support my 6000 Lbs Travel Trailer. They are a big improvement over the stock bumpers.


I have a 2018 GMC Sierra 1500 pick up truck (elevation package) in which I added a 3.5 inch ROUGH COUNTRY KNUCKLE LIFT KIT with Front Struts. The rear distance between the bump stop's metal cup just under the frame and the the rear axle is 8.25 inches with an empty truck bed and a quarter tank of gas. I gave the professional this information on my truck and what I needed; they e mailed back the kit with only 1.5 additional spacers on each side of the truck, Ok. I still came up with 2.25 inch space with an empty truck bed on both sides. I feel More TIMBREN PRODUCTS WOULD be SOLD if websites carried information All together for the average people to buy at their finger tips. It would have been easier for me if the following were all grouped together for my truck :
TIMBREN Rear Suspension Enhancement System
TGMRCK15S (that has 3/8 bushing) which is actual about 4.5 inches not 5inches in
FOR TRUCKS with LIFT KITS spacers are required with the same 3/8 bushings

1 inch spacer (that has 3/8 bushing) A25723-90AHOO
1/2 inch spacer (that has a 3/8 bushing) TA25722-90POO
I required an additional 1 inch spacer on both sides than I was e mailed. It would also be easier if I could buy the additional bolts grouped with my additional 2.5 spacing on both sides of my truck on the web site, than going to the hardware store. I would pay the additional cost. So all together for my 3.5 ROUGH COUNTRY LIFT, I required 2.5 inch spacers on both sides with the 4.5 height kit which = 7 inches . I haul my 4 wheeler in the bed and broke a level spring years ago. On other occasions I place fire wood in the truck bed. TIMBREN is the way to go, it will be there when I put weight in the bed of truck; be it a 4 wheeler or wood. Friends of mine have air bag systems that leak over time and are much more in price. You can not go wrong with TIMBREN. When installing, remove salt and sand near top of original bump stop bolt, apply PB blast wait 10 minutes use a breaker bar with easy removal. Go to the hardware store to get longer bolts. When installing have to jack up the back of the truck under the towing package to get space to use tools to add new TIMBREN PRODUCTS.



Awesome for hauling four wheeler in bed and for hauling load of fire wood in the bed, no broken leaf springs and no sag


Even using equalizing bars, I was experiencing "motorboating" when towing our travel trailer. I've had several air bag setups in the past and have always had to add air daily, so I bought the pair of Timbren suspension enhancement blocks.
Mounting took about 20 minutes.
The Timbren blocks stopped the "motorboating."
Another benefit, is my ride stays as factory without messing with air pressure at all.
Also, now I'm able to move my travel trailer short distances without installing the equalizing bars at all. My pickup stays nice and level.



The Timbren blocks are working out great! The only negative is that there is only a couple inches of freeboard travel brfore the axle contacts the blocks. When there is no load, bumps like speed bumps are a bit harsher than before. I guess that is to be expected though. Even with this slight increase in unloaded harshness, I still give this product five stars.

2013 Chevrolet Silverado

Install was straight forward; the old stops fought me a bit- a few shots of PB helped. Great install videos on your website to help me. Looking forward to towing my camper with the Timbren’s installed! I decreased 1 1/2” of rear end squat when I hooked onto my 7000 lb camper (before attaching my weight distribution bars.)


The units were installed quickly made especially easy because of the printed instructions which accurately described what to do and the correct socket sizes of the bolt heads. After installing we pulled our small travel trailer from Central California to Quebec, Canada, and back with no problems, a distance of over 8,000 miles.


It's okay. I believe I'm going to replace it with an air bag system though, as currently every time I hit a bump the springs make the small gap to the top of these and I'm always hitting the bump stops.

Etrailer Expert

Jenny N.


You mentioned that when hitting a bump a gap appears above the springs. Would be able to send a picture?



There is always a gap above the springs, they do not contact the leaf spring while the truck is resting. It is just small enough of a gap that any bump I do hit makes the leaf spring contact the Timbren jounce spring, which has the same sound effect as hitting a bump stop.

Etrailer Expert

Jenny N.


My apologies as I was thinking that you meant that there was a gap at the top of the Timbren bump stop verses at the bottom between the bump stop and the springs. Of course, there should be a 0.5 inch to 1.5 inch gap and some people feel like it creates a stiffer ride when the truck is not loaded. I think this is what you are experiencing. I would recommend taking a look at part # AL57288 for your 2021 GMC Sierra 1500 with 4 WD. There are a few tech tips to consider with this kit. It will not fit with vehicles equipped with Adaptive Ride Control or the AT4 models.


Good customer service poor shipping box came open

Etrailer Expert

Jenny N.


I will have our Customer Service team reach out to you.


Installed these on my 2016 Silverado. Gained almost 3/4 inch in suspension height back with a 26 foot travel trailer on the back. Much nicer ride as well. I’ll be getting them for the front when I get a plow. Very easy to install too.

2012 Chevrolet Silverado

I had high hopes for these after reading the reviews, but I think the original factory suspension was better. I have noticed more squat when I load my trailer.

2014 Chevrolet Silverado

I have a 2014 Silverado 1500 and 24’ gooseneck weekender horse trailer. I just got the trailer and the guy I got it from recommended the Timbren’s to me. When I first dropped the trailer on my truck empty it squatted me 4.5” in the rear. The trailer weighs just under 5,000 pounds empty. When I first pulled the trailer empty I wasn’t sure about the Timbren’s they seemed really bouncy on my road. My road is not the smoothest road though. This past weekend I loaded 3 horses into my trailer and traveled about 1.5 hours away and I was blown away at how well my truck drove and handled fully loaded. With the Timbren’s my truck barely squats now. The trailer rode a hundred times better loaded with horses, which most big trailers ride bad when empty anyway. As far as driving with no load at all the truck rides just like normal. However if you hit a big hump in the road sometimes it will be enough to make it hit the Timbren’s and gives a little jolt. As far as recommending I definitely recommend these especially if you have a 1/2 ton truck and pulling a fairly heavy load.

2014 GMC Sierra 1500

I installed this product to help level my 2014 GMC 1500/4x4 when towing a 18ft trailer. They work great and yes I would buy them again. However it will stiffing the ride of your vehicle with no load. If you do not use your truck a lot to carry or pull loads you may not like them. They work just as instructed by the company. Took me only 15 mins to install and a good looking product.


Best thing you can do for the money spent is to get these for saving your springs. They truly help in controlling the bumbs when you are under heavy load conditions.


The supplied bolts are too short. Finding the right bolts added to time to do the install.

The jounce springs are 1/2 inch from axle. I'm sure the ride will be very harsh even when not loaded...


I just installed these on April 30, 2020 on my 2016 Silverado 1500. They make a world of difference! The truck still rides great empty and the handling and overall ride quality when hauling has improved tremendously with hardly any sag. I highly recommend these to anyone who actually uses their truck.


Very happy with my timbrens and the prompt order and delivery of them. I have them installed and look forward to towing my trailer next week. Thank you.


I bought the wrong product--these did not solve the problem I was faced with--no fault of Timbren. They did work as designed, and were easy to install. I had hoped they would help control the galloping problem I was having when towing my travel trailer--but instead they caused a noticeable "thump" every time we went over a bump or an undulation in the road while the galloping continued. I simply did not have enough rear suspension to handle the trailer tongue weight (even though I was within payload limit at the scale). Solution turned out to be a bigger truck, lesson learned.

Show More Reviews

See what our Experts say about this Timbren Vehicle Suspension

  • Which Timbren Kit Fits 2018 Chevrolet Silverado 1500 without MagneRide
    We have a Timbren kit that fits your 2018 Chevy Silverado 1500 without MagneRide but the part # TGMRCK15MR is the version that is for the Magneride. So instead what you'd want is the part # TGMRCK15S.
    view full answer...
  • Timbrens For 2017 GMC Sierra
    That's a really good question. I got a hold of my contact at Timbren, unfortunately they told me that each kit is designed to work specifically for that truck. So if your Sierra does not have magneride, you will want to use # TGMRCK15S, and if you do have magneride use part # TGMRCK15MR. Each kit is compatible with both 2WD and 4WD. While the spring may bolt up and thread on, each kit has different shaped springs, heights, and designed to work with the truck's factory suspension. So it...
    view full answer...
  • Correct Timbren SES Fit for a 2016 GMC Sierra 1500 SLT
    The Timbren Suspension Enhancement System (SES) # TGMRCK15MR fits a 2016 GMC Sierra 1500 if it has the MagneRide suspension. From what I could tell it looks like the MagneRide suspension typically only comes on the Denali for this year so since you have an SLT you need the Timbren SES # TGMRCK15S instead. I have attached an installation video of this kit on a 2016 GMC Sierra 1500 that you can check out. I'm glad our tech tip section was able to help you out in determining fit. There are...
    view full answer...
  • What Are The Differences Between The Timbren TGMRCK15S And TGMR15MR For A 2021 GMC Sierra 1500
    These two Timbren rear suspension systems are the same except for two major differences. They are both compatible with your 2021 GMC Sierra 1500. They are each rated at 8,600 lbs and are rated extra heavy duty. The differences are the Timbren Rear Suspension Enhancement System, part # TGMRCK15S, is jounce-style spring that replace axle bump stops on your frame and it does NOT fit vehicle's with equipped with Adaptive Ride Control. While the Timbren Suspension Enhancement System - Rear Axle,...
    view full answer...
  • Best Timbren Suspension Enhancement For 2017 Chevy Silverado 1500
    The Timbren # TGMRTT15S is for service vehicles such as tow trucks; they are very stiff and for a standard 2017 Chevy Silverado 1500 truck that is for towing, you definitely don't want to use those. The best Timbrens for your '17 Silverado 1500 will depend on if you have the MagneRide suspension or not: - WITHOUT MagneRide: Timbren Suspension Enhancement System # TGMRCK15S - WITH MagneRide: Timbren Suspension Enhancement System # TGMRCK15MR I do recommend Timbrens for towing, as they'll...
    view full answer...
  • Will Timbren Rear Suspension Enhancement Kit # TGMRCK15S Fit 2009 Silverado 1500 with FlexFuel
    I reached out to my contact at Timbren and she verified that the Timbren Rear Suspension Enhancement System # TGMRCK15S you referenced will fit your 2009 Chevy Silverado Z71 1500, even if it has the XFE or FlexFuel package. This may have been a fit note for previous model trucks that got carried over but there's no issue with this installing these springs on yours. I have attached a sample installation video that you can follow along with as well as the written manual that you can check out.
    view full answer...
  • Do Timbren Suspension Enhancement Systems Have a Warranty?
    The Timbren Rear Suspension Enhancement System # TGMRCK15S you referenced do come with a limited lifetime warranty. I have linked for you separately their page which details the warranty. The # TGMRCK15S are a confirmed fit for a 2000 Chevy Silverado 1500; I've added a link to a video review and install of these springs for you to take a look at.
    view full answer...
  • Will the Timbrens Work With a 2014 Chevy Silverado 1500 That Has a Leveling Kit
    The Timbren Rear Suspension Enhancement System part # TGMRCK15S which is a fit for a 2014 Chevrolet Silverado 1500 comes with both replacement jounce springs so you will only need to order one kit. The Timbrens are going to be an excellent option to reduce sag while towing or hauling a heavy load. In regards to needing spacers, this will not be an issue as a leveling kit only affects the front suspension, not the rear so you will be good to go with the above.
    view full answer...
  • What Timbren Suspension Enhancement Kit Can I Put On My Chevrolet Silverado 1500
    When installing a suspension enhancement kit on your 2012 Chevrolet Silverado The Timbren Rear Suspension Enhancement System # TGMRCK15S will work fine with the leveling system that already is installed per the manufacturer. The Timbrens have a weight capacity of 8,600 pounds and help reduce vehicle swag. No drilling is required during the installation process. I have attached an installation video below.
    view full answer...
  • Will the Timbrens Help with Worn Out Leaf Springs on a 2005 GMC Sierra 1500
    If the leaf springs on your 2005 GMC Sierra are worn out then the Timbren Rear Suspension Enhancement System part # TGMRCK15S will engage more frequently. This would help your leaf springs from wearing further but this may also have an adverse affect on ride quality. The best option and what I recommend is to replace the leaf springs and then add the Timbrens but as stated, these will prevent your springs from wearing further so they can get you by until you are able to replace the leaf...
    view full answer...
  • Will the Timbren Rear Suspension Enhancement System Fit a 2010 Chevy Silverado 1500 with FlexFuel
    I spoke with Timbren and can confirm that the Timbren Rear Suspension Enhancement System part # TGMRCK15S will fit your 2010 Chevrolet Silverado 1500 with the FlexFuel package. The only fit exclusion we have is for the XFE models which are lowered from the factory and why the Timbren Rear Suspension Enhancement System will not work but FlexFuel is okay.
    view full answer...
  • Timbren Rear Suspension Enhancement Package Contents
    The Timbren Rear Suspension Enhancement System # TGMRCK15S comes with 2 of the Aeon springs for both wheels on your rear axle, vehicle specific brackets and the mounting hardware.
    view full answer...
  • Suspension Enhancement System for a 2022 GMC Sierra 1500
    Yes, there are Timbren systems available for your 2022 GMC Sierra. For hauling dirt and rock in the back of the bed of your truck I recommend the Timbren Rear Suspension Enhancement System item # TGMRCK15S. These hollow springs sit above your rear axle and have a 8,600 lbs capacity. They will keep your suspension from sagging when you are hauling a heavy load. I have attached an installation video and linked the instructions.
    view full answer...
  • Recommended Rear Timbren Spring Clearance On A Lifted 2014 Chevrolet Silverado
    Per the manufacturer's recommendations, there should be approximately 1"-1.5" of clearance between the rear contact point and the Timbren Rear Suspension Enhancement part # TGMRCK15S when not under load. Too little space will cause the spring to constantly ride on the axle/bracket resulting in a bouncy uncomfortable ride where as, a spring to far from the contact point will not allow for the full capabilities of the spring to be exerted. Since you currently have 1"-1.5" of clearance, I...
    view full answer...
    Image 1 for
  • Height and Width of the Timbren Rear Suspension Enhancement System TGMRCK15S
    I went out to the warehouse and pulled Timbren kit # TGMRCK15S to take some measurements for you. The overall height of the spring is 5-1/8 inches and the overall width is 4 inches (diameter).
    view full answer...
  • How Do You remove a Rear Bump Stop On A 2021 Chevy Silverado
    When we removed the rear bump stops, we found that by using a 10 mm socket and ratchet to take the bolt down. You may have to switch to a smaller ratchet but still using the 10 mm socket to get it completely off, and after you finished taking them off you add install the Timbren Rear Suspension Enhancement System. I put an installation video below.
    view full answer...
  • What Model Silverados Will Timbren Rear Suspension Kit # TGMRCK15S Fit
    The Timbren Rear Suspension Enhancement System # TGMRCK15S referenced in your question is designed to fit the following models of the Chevy Silverado: 2014 - 2018 Chevrolet Silverado 1500 2019 - 2019 Chevrolet Silverado 1500 LD 1999 - 2013 Chevrolet Silverado 1500 2007 - 2007 Chevrolet Silverado New Body 1500 2001 - 2006 Chevrolet Silverado 1500 LD 2007 - 2007 Chevrolet Silverado Classic 1500 LD I have attached an installation video and the written instructions that you can check out as well.
    view full answer...
  • What Timbren Rear Suspension Enhancement Kit Will Fit 2011 Chevy Silverado 1500 4x4
    The correct Timbren Rear Suspension Enhancement System for your 2011 Chevy Silverado is Timbren # TGMRCK15S. This will fit as long as you have not altered the height of your vehicles factory suspension and your truck is not the XFE model. Timbren offers the # TGMRCK15S-M2 for the owners who have lowered their truck. M2 is the factory designation for minus 2. I have attached a FAQ article covering Timbren suspension enhancement systems. I have also attached a brief installation video on...
    view full answer...
  • Does the Timbren Suspension System # TGMRCK15S fit a 2006 GMC Sierra Extended Cab Short Bed?
    Yes, the Timbren Rear Suspension System part # TGMRCK15S that you referenced will work on your 2006 GMC Sierra 1500 extended cab short bed. I confirmed this with Timbren. I also attached an installation video for this product on a very similar Silverado and installation instructions.
    view full answer...
  • What Holds Bump Stop of 2020 Chevy Silverado 2500 in Place
    The bump stop of your 2020 Chevy Silverado 2500 actually is not held in with a bolt and to remove it you would just need to pry it out.
    view full answer...
  • How to Remove Factory Bump Stops in 2020 Chevy Silverado 1500
    To remove the existing bumpstop, you'll need a 10mm socket and a 6 inch extension. I've linked to an install video that you might find helpful.
    view full answer...
  • Suspension Enhancement Recommendation for 2016 Chevy Silverado 1500 with Curt 5th Wheel Rails
    I have a suspension enhancement solution for your 2016 Chevy Silverado 1500 but none of the air bag kits are a confirmed fit. What will work great instead is a Timbren kit part # TGMRCK15S which is a confirmed fit for your vehicle and due to the way it installs does not interfere with fifth wheel install rails.
    view full answer...
  • Can a Timbren Suspension Kit be Used with Weight Distribution System
    Yes, you can use a Timbren system like the part # TGMRCK15S with a weight distribution hitch on a 2017 Chevy Silverado 1500. If you have the WD system already you'll have to go through the setup process again after the Timbren install since you'd need less spring bar tension.
    view full answer...
  • Recommended Timbren Suspension Enhancement for 2017 Chevy Silverado 1500 4x4
    For your 2017 Chevy Silverado 1500 4x4, I recommend the Timbren Rear Suspension Enhancement System # TGMRCK15S. The 8600 lb rating is for just the spring's ability and they will not be used to that extent on your vehicle as other parts would fail first. You won't have that much weight on your bumper or in your bed when towing the 12K max as the trailer axles will carry much of that load. These springs will compress more as more weight is added and will become more rigid as they compress....
    view full answer...

Do you have a question about this Vehicle Suspension?

Info for this part was:

Employee Mike L
Expert Research:
Mike L
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 Jeffrey L
Expert Research:
Jeffrey L
Employee Zack K
Video Edited:
Zack K
Employee Joshua S
Video Edited:
Joshua S
Employee Jacob T
Video Edited:
Jacob T
Employee Chris R
Video Edited:
Chris R
Employee Andrew K
Video by:
Andrew K
Employee Jonathan Y
Video by:
Jonathan Y
Employee Nicholas E
Test Fit:
Nicholas E
Employee Robert C
Test Fit:
Robert C
Employee Kevin C
Test Fit:
Kevin C
Employee Cole B
Installed by:
Cole B
Employee Mary K
Updated by:
Mary K
Employee Wilson B
Updated by:
Wilson B
Employee Anna W
Updated by:
Anna W
Employee Michael B
Updated by:
Michael B
Employee Carrie F
Updated by:
Carrie F
Employee Bethann B
Updated by:
Bethann B

At 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