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  1. Vehicle Suspension
  2. Timbren
  3. Bump Stops
  4. Towing/Load Leveling
  5. Rear Axle Suspension Enhancement
  6. Extra Heavy Duty
THIS ITEM IS NOT A FIT FOR
1992 Dodge Van
Timbren

Timbren Rear Suspension Enhancement System

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$269.36
Retail:$316.90
You Save: $47.54
Vehicle Suspension
Not Confirmed to Fit

1992 Dodge Van

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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 etrailer.com or call 1-800-940-8924 for expert service.
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Timbren Vehicle Suspension

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

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.


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


Specs:

  • 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 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. And more elasticity allows for a more comfortable ride when loaded or towing 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:

Ratings & Reviews

4.7

3815 reviews
5 Stars
(3030)
4 Stars
(492)
3 Stars
(122)
2 Stars
(73)
1 Star
(98)
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.

by:

We notice a significant difference in the minivan's handling when changing lanes and when hitting large bumps. Without these, the van's weight was too light on the front wheels. This product replaced the factory installed axle bump stops. Glad etrailer made these available.



by:

Just installed but upon arrival, the item was definitely not “New” as the packaging was re-taped and missing one of the washers. Expected more from eTrailer.



by:

This product works great! I got them for towing my camper and they really help eliminate the bounce when towing. They’re easy to install yourself. This is actually the second set that I bought because I bought another truck and put them on it as well.



by:

Order is great and quality is great



by:

Easy to install. They work great!



by:

Never showed up in time.



by:

very pleased



by:

Simple install and adjustable.



by:

Great product so far. If you can change a flat tire, you can install these. Put these on my 2018 GMC 2500 to pull a fifth wheel. It limits the amount of squat while towing, and greatly enhances stability. Easy solution for not much $.



by:

Very easy to install but not sure they help much. It appears to make my ride much rougher as it doesn't seem they have my shock absorption.



by:

The Timbren product works as advertised, and do their job well. Too stiff for my purpose, suggest that everyone heed the manufacturer's clear note that this specific system is for continuous heavy loads.



by:

smart way to protect your safety and vehicle
Yes, buy it!!!!!



by:

I've had them for about a year now. I use my 20 ranger as a tow rig and just an overall work truck and these have been one of the best decisions. I used to have them on my 2500 and never noticed any difference but on the ranger it's a night and day. Will run again on any other truck I have in the future



by:

No hardware was in the box, or instructions. Box was factory sealed, so it puts their quality in question. Picture shows the nuts and bolts to install but none are in the box.



by:

Ordered type Timbren system. Had a question before buying, sent email and within an hour it was answered. Ordered and installed with no issues.



by:

Did not stop read end sagging did not level it out. What a huge waste of money first and last product purchase from etrailer :(



by:

It did what it was supposed to do. When I wasn’t towing, it definitely made for a rougher ride, but it was nice when I was towing. Unfortunately I sold the truck with them installed so I will look to buy new ones for my 2015 F-150



by:

Very fast delivery, great product as advertised, easy install instructions



by:

I use this in my Ram pickup because I often have a slide in truck camper loaded. I used to use air bags, but I much prefer these springs. The truck stays level and you don't have to adjust anything. Easy install also.



by:

Easy to install and works perfect NO more sag on my truck I have push it past its rated limit and never had any issue.



by:

These worked great for my family and I in our 2019 Honda Odyssey. Our last trip was to Myrtle beach and we were loaded to capacity, our van handled the extra weight just great! I also towed a small car on a dolly to my home, about 15 miles and our van composed greatly. Sadly our van is gone but the experience of Timbren will always be with me!



by:

Works great, easy install



by:

The difference these made in our RV was like night and day! It reduced the sway to nothing, the rattling from the inside is basically gone (unless you hit a pothole or big bump) super easy to install I'm a 60 y/o lady and I installed them myself.



by:

great service!



by:

Product has done exactly what I wanted it to do while towing with the F150 (Limit the sag and porpoising). The only potential negative is that you will bottom out easier over speed bumps but you can avoid that by slowing down to a normal speed. Also after 6 months you rarely feel it. Great Product and worth every penny.


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See what our Experts say about this Timbren Vehicle Suspension

  • Best Suspension Enhancement for 2020 Chevy Silverado 1500 for Squat When Towing
    Thanks for the photo and the Timbren Rear Suspension Enhancement System # TGMRCK15S you mentioned is a good option for helping keep your 2020 Chevy Silverado 1500 level, but the best option is something a little different, the RoadActive Suspension Custom Leaf Spring Enhancement Kit # RAS4611. The reason why the RAS kit is the best is because it is an active system, which means it continually works to reinforce your Silverado's leaf spring suspension. The force normally put on your Chevy's...
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  • What Stops Porpoising on Tow Vehicle that is Using Weight Distribution with Trailer
    Most of the time when a tow setup is porpoising with a weight distribution system all you have to do is add a bit more spring bar tension to minimize the porpoising. With an Equalizer system you would need to angle the spring bars down further to add the additional tension. Suspension enhancement like the Timbren part # TGMRCK15S would help but you should be able to solve the problem with the WD system.
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  • Do You Recommend the Timbrens or Roadmaster Active Suspension for My 2021 Chevy Silverado 1500?
    As for comparing the Timbrens # TGMRCK15S to the Roadmaster Active Suspension Custom Leaf Spring Enhancement Kit # RAS54FR on your 2021 Chevy Silverado 1500 (4x4), the answer really depends on how much you tow or need suspension support for your Chevy. The Timbrens will do a great job for semi-regular towing or support, but if you are a regular tower I recommend going with the Roadmaster Active Suspension # RAS4611. The reason is because the force put on your Chevy's springs when towing,...
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  • Recommended Towing Enhancements for 2019 Chevy Silverado 1500
    There are two products that you can add to your vehicle and towing setup that will help improve the ride quality while towing: a weight distribution hitch and a suspension enhancement of some sort. I recommend starting with a weigh distribution hitch, and the Equal-i-zer Weight Distribution System # EQ37120ET should work for your 7500-lb GVWR trailer; you'll want to confirm that the tongue weight of your trailer falls between 800 and 1200-lbs (staying towards the middle of that range...
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  • 5th Wheel Towing Capacity For A 2007 Chevy Silverado 1500
    The 9,048lbs is the dry weight but you still want to account for the weight of your cargo. Per the owners manual, you're limited to between 14,000 to 16,000 lbs as far as Gross Combined Weight Rating of the completely loaded vehicle and trailer including any passengers, cargo, equipment and conversions. If you load your truck as you intend on using it, you can have it weighed at a commercial scale location. The difference between this weight and the Gross Combined Weight Rating total...
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    So the difference between the Timbren Rear Suspension Enhancement System # TGMRCK15S and SuperSprings Custom Suspension Stabilizer and Sway Control Kit # SSA28 are the benefits they offer and what you are looking to get out of an enhancement system. The Timbrens # TGMRCK15S are jounce springs and how they work is simple but effective. When you have additional weight at the rear of your truck, like when towing, it will sag, causing the front of the truck to rise. This causes your front...
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  • What Is Recommended Space for SumoSprings On 2020 Chevy Silverado 1500
    The SumoSprings Solo Custom Helper Springs part # SS45FR which are a fit for a 2020 Chevrolet Silverado 1500 will provide around a 1/4"-1/2" gap between the spring and contact point. These will have a much tighter fit than the Timbren Rear Suspension Enhancement System part # TGMRCK15S but since they are softer won't create any ride quality issues. If the vehicle has been lifted, you can use spacers like the Timbren 1" Spacer For Raised Frame Vehicles part # A25723-90AH00.
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  • Which Jounce-Style Suspension Enhancement Should I Install On 2020 Chevy Silverado 1500 Non Mag Ride
    The Timbren and Sumo Spring suspension enhancement systems use a jounce-style spring which is an excellent choice for leveling out your truck and trailer, all while improving handling and reducing trailer sway. They simply replace your factory bump stops and require a simple bolt-in installation process. The SumoSprings Solo Custom Helper Springs - Rear Axle # SS45FR are confirmed to fit your 2020 Chevrolet Silverado 1500 but this only has a 1,500lb weight capacity for the rear of your...
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  • Best Way to Fix Sag When Towing with 2020 Chevy Silverado 1500
    Suspension enhancement would be a good idea to get rid of the squat you are experiencing when towing with your Fastway E2 weight distribution system. The best option is the RoadActive Suspension kit part # RAS54FR which gives you the support you want to reduce the sag but unlike other options will improve the ride quality and handling when loaded or unloaded. Other options like air bags will give you the support but won't improve ride quality which is why we recommend these so highly. The...
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  • 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.
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  • How to Remove Factory Bump Stops in 2020 Chevy Silverado 1500
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  • Difference Between Timbrens TGMRCK15S & TGMRTT15S For 2017 & 2021 Chevy Silverado 1500
    So to answer your first question, both of these Timbrens will fit on both a 2017 and 2021 Chevy Silverado 1500 (so long as your truck does not have the Adaptive Ride Control). The biggest difference is what type of vehicle they are designed for. The # TGMRTT15S is designed for service or work vehicles (like tow trucks, for example) and are much stiffer than needed for a standard passenger pick-up truck. So what I assume you have, and can use on both trucks, are the Timbren Rear Suspension...
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  • Timbren Front and Rear Suspension Enhancement For a 1999 Chevrolet Silverado 1500
    The Timbren # TGMRCK15S have an 8,600lb capacity while the Timbren # TGMRCK25S only have a 6,000lb capacity. If your 1999 Chevrolet Silverado is only used for occasional heavy loads I would go with the 6,000lb kit otherwise the 8,600lb kit will provide you with the best support if you always have heavy loads. For the front we have the 2WD # TGMFK25S or 4WD # TGMFK15A Timbren springs. These are primarily best when using a snow plow as they have a very heavy 14,000lb capacity. The SumoSprings...
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  • Recommended Bump Stops for Towing With a 2021 Chevy Silverado 1500
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  • What is the Height of the Springs in Timbren Suspension Enhancement Kit # TGMRCK15S
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  • Recommended Rear Suspension Enhancement For 2021 GMC Sierra 1500 AT4
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  • Can Timbrens for 2003 GMC Sierra 1500 Be Used without Spacer
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  • Recommended Rear Timbren Spring Clearance On A Lifted 2014 Chevrolet Silverado
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  • Can Timbren Kit Install at Same Time as RAS Kit
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  • Bump Stops for a Timbren Rear Suspension Kit on a Lifted 2020 Chevy Silverado 1500
    The best way to determine how many spacers you need for the Timbren Suspension Kit item # TGMRCK15S, for your 2020 Chevy Silverado 1500, is to measure the distance from the underside of your frame where your bump stop sits to the axle directly below where the spring makes contact. The spring and bracket in this kit measure 5 inches tall unloaded and the spring should sit about 1 inch above your axle once it is installed with no load in the truck. From here, measure the frame to axle distance...
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  • Can Super Springs Suspension Stabilizer and Timbren Aeon Springs Be Used Together
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  • 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,...
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  • Comparing Unloaded Ride Quality of Firestone Air Bags to Timbren Suspension Enhancement
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