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Timbren Rear Suspension Enhancement System
Part Number: TGMRCK25
$269.36
Retail:$316.90
You Save: $47.54
2015 Land Rover Evoque
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- All Info
- Reviews (7301)
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Timbren Vehicle Suspension - TGMRCK25
Highlights
- Custom Fit for Your Vehicle: Mounts to existing attachment points
- 6,000-lb Load Support: Keeps your truck level and stable when towing or hauling heavy gear.
- Smoother, Safer Ride: Rubber springs absorb road shock to reduce bounce and body roll.
- No Air Lines or Adjustments: Installs easily without compressors, hoses, or gauges to maintain.
- Even Support on Turns: Each side works independently to steady off-center loads and cornering.
- Protects Suspension Parts: Cushions impacts to prevent bottoming out and extend suspension life.
Features to know about
Stay Level and Confident Under Heavy Loads: 6,000-lb Rear Suspension Support
When hauling or towing pushes your rear axle down, these hollow rubber springs step in with up to 6,000 lbs of extra support. The Timbren Rear Suspension Enhancement System works with your stock suspension to keep your ride level, even with heavy cargo or a loaded trailer. That helps maintain traction, steering, and braking instead of letting the rear squat and the headlights aim skyward.
Handle Rough Roads Without the Bounce: Progressive Rubber Spring Design
Each Aeon hollow rubber spring is built to compress progressively, staying soft under light loads and stiffening automatically as weight increases. The convoluted design collapses along its folds and then firms up when needed, cushioning bumps while keeping your suspension from bottoming out. The result is smoother control on uneven roads and reduced wear on factory components.
Stay Steady in Crosswinds and Turns: Independent Spring Action
Each spring works on its own to support the driver or passenger side. That independent action helps steady the vehicle in corners or when hauling off-center loads, cutting down body roll and sway. When a trailer starts to move from gusts or passing traffic, the truck stays planted and the sway settles faster for a more controlled drive.
Simple Bolt-On Setup: No Air Lines or Adjustments
Installation is straightforward—bolt the custom-fit brackets to the frame rails above the axle using the included hardware. There’s no drilling, no air hoses, and no compressors to manage. The springs sit about 1" above the axle so your factory suspension operates normally when unloaded, then engage automatically when you add weight. It’s a clean, mechanical solution for load leveling without any manual adjustments.
Specs
Included Components
- Includes: 2 Aeon hollow rubber springs, vehicle-specific brackets and hardware for simple installation
- Replaces: axle bump stops on frame
Installation
- Drilling: No drilling required
Weight and Capacity
- Capacity: 6,000 lbs
Compatibility and Usage
- Do not exceed: the vehicle's weight-carrying capacity
- Designed to work with: a suspension system that is in good working order
Warranty
- Limited lifetime warranty: satisfaction guarantee
GMRCK25 - Rear Suspension Enhancement System with Aeon Hollow Rubber Springs by Timbren
This Product Fits The Following Vehicles
- 1988 - 1999 Chevrolet C/K Series Pickup K1500
- 1988 - 2000 Chevrolet C/K Series Pickup K2500
- 1988 - 1999 GMC C/K Series Pickup K1500
- 1988 - 2000 GMC C/K Series Pickup K2500
Customer Satisfaction Score:
98% were satisfied with this product
2% of customers were not satisfied
- Defective
Ratings & Reviews
4.7
7301 reviews
by:
Chad j
08/17/2016
Great product I had these on my old truck and now bought them for my new one. They work great if you have a truck camper to eliminate sag. Very easy to install took me less than half an hour.
by:
Keith
05/26/2018
1997
GMC
C/K Series Pickup
I put the Timbrens on a 1997 k2500 I haul 2 mobility scooters and travel trailer. With just the scooters and no Timbrens the truck set down about 3/4-1 inch so I installed mine with the 1/2 inch space left. With just scooters it rides firm but not harsh if on dirt road or hitting a hole you will know it with trailer attached it rides great no more rear end of truck bouncing up and down when going over a bridge. Also helps on truck lean when going in curves has been a great product for me
by:
Curtis
08/23/2022
1992
Ram
3500
Installed Item #TGMRCK25 on a 1992 SRW Chevy K3500 expecting the Timbren 2500 kit would be best match for my single rear wheel model. Timbren plate mount was one-bolt-hole short for my 3500 truck and not originally centering over the axle, but I simply reversed Timbren labeled sides and added a full length bolting plate over the Timbren plate to make it perfect installation and directly over each axle pad where it belonged. Final spacing was 1 inch air-gap between axle pad and Timbren rubber shock, when unloaded. Perfect axle-pad alignment with my additional tailoring, and absolutely stabilized my very top-heavy PU Camper (especially when coupled with new Rancho adjustable shocks). Awesome product.
by:
Richard
02/19/2020
2015
Chevrolet
Silverado
Have a 24' toy hauler with two Silverados 1500 to tow a 15 and a 98. This is my second redarc brake controller for my back-up tow vehicle the 98. Bought it with a set of tibrens, well packaged and shipped fast. I have had problems in past with etrailer in their packaging multiple items together. Ex. the last redarc I bought I also ordered a class 4 hitch. Tha redarc was just tossed into the box for the hitch and was banging around no packing material etc. The hitch box was torn open in two corners during shipping. You would think common sense shipping a delicate electronic device and a big heavy hitch bouncing off each other use a little packing materiaL. Called etrailer and they said no to worry if it didn't work they would replace it. But still it could have all been avoided with a little packing material or ship them separate (each qualified for free shipping).
Really like being able to mount the redarc control box in any position, plus saves the knees Never liked the ones that mounted under the dash. Just trying to look down and taking eyes of the road to manually activate them not good. Wish the control knob was bigger or the numbers were more visible otherwise your adjusting hitting the breaks adjusting hitting the brakes till you get it where you want it then you still have be able to see what the setting number is. But that aside i wanted a built in OEM look something that wasn't in the way when not using and not visible to thieves. On my 2015 Silverado (with a heat gun) bent a piece of lexan to mount the switch in the cubby hole where the OEM brake controller installs. So the knob is a small point compared to pluses, ease and versatility of install (other than drilling a hole for control knob, hint if you have dremel tool its a big help getting the shape of the hole just right.) The Tibrens love the first set that why i bought a second, you have about an inch inch and half of suspension travel till they engage so unloaded you have a regular smooth ride, but hit a dip in the road or pothole etc and you feel the tibrens engage. which really helps in not letting the front wheels become unloaded. Other than the packing issues have been happy with etrailer, price, shipping, there my first stop. Would like to see a few things, ex. a better selection of locks for the trailer, most are just an inconvenience to a thief with a sledge hammer and a chisel or a cordless sawzall. There are better security stuff out there.t
Really like being able to mount the redarc control box in any position, plus saves the knees Never liked the ones that mounted under the dash. Just trying to look down and taking eyes of the road to manually activate them not good. Wish the control knob was bigger or the numbers were more visible otherwise your adjusting hitting the breaks adjusting hitting the brakes till you get it where you want it then you still have be able to see what the setting number is. But that aside i wanted a built in OEM look something that wasn't in the way when not using and not visible to thieves. On my 2015 Silverado (with a heat gun) bent a piece of lexan to mount the switch in the cubby hole where the OEM brake controller installs. So the knob is a small point compared to pluses, ease and versatility of install (other than drilling a hole for control knob, hint if you have dremel tool its a big help getting the shape of the hole just right.) The Tibrens love the first set that why i bought a second, you have about an inch inch and half of suspension travel till they engage so unloaded you have a regular smooth ride, but hit a dip in the road or pothole etc and you feel the tibrens engage. which really helps in not letting the front wheels become unloaded. Other than the packing issues have been happy with etrailer, price, shipping, there my first stop. Would like to see a few things, ex. a better selection of locks for the trailer, most are just an inconvenience to a thief with a sledge hammer and a chisel or a cordless sawzall. There are better security stuff out there.t
by:
Richard
12/08/2024
They are by far the best bump stops I've use Fast shipping very easy DIY with in 30 minutes I had them installed
by:
John
05/14/2022
I placed these on my farm truck and they absolutely did the trick. I haul hay trailers and cattle trailers and the difference these made over the OEM bump stops is remarkable.
by:
Dale
09/15/2022
Haven’t tested them out yet. Going to have to order some spacers because my truck has a small lift kit. Appearance wise looks like they’re gonna do the trick. Have ordered a few things lately from etrailer. Top notch company all around.
by:
James
09/15/2022
Installed on my 1993 1/2 ton Chevy to provide additional support for pop up slide in camper. Truck now stays level going down the road and does not swing side to side anymore. Good product.
by:
Terry R
06/29/2020
Works as it should and easy installation great product
by:
Ray
06/11/2013
1995
Chevrolet
C/K Series Pickup
The parts were easy to install and worked like a charm. I suggest you wash the under side of your vehicle before putting these on. the hardest part of the job was dodging the dirt and rocks I had in the frame of my vehicle.
by:
Chad
01/09/2017
Got the product quick after restocking looking forward to installing them
by:
Harry
08/24/2023
Superb. Exactly what was needed.
by:
nicky k
03/28/2011
3 days came in 4 but all is well thanks and would be buying something again thanks sal
by:
Matt
05/29/2025
Excellent
by:
Ken R
02/09/2012
1997
Chevrolet
C/K Series Pickup
really give it a workout yet.
by:
MILLER REPAIR
08/06/2015
It performed as expected
by:
Dylan
06/13/2025
by:
Daniel
07/03/2025
by:
Todd
08/09/2026
1998
Chevrolet
C/K Series Pickup
by:
David
10/18/2025
by:
John
07/29/2021
by:
Troy
06/16/2023
1994
Chevrolet
C/K Series Pickup
by:
Bobby
07/23/2021
by:
Shawn
11/12/2021
by:
Adam
08/12/2026
I'm suitably impressed with the difference i feel.
I have about 250 lbs. of static load with my topper and Decked cargo system. This put my install gap with no spacers just under the reccomended 1 inch minimum.Then add a couple hundred more pounds hauling music gear 100 shows a year, and the stop is resting on the axle.
I feel the absorption of the Timbren material is better than the flimsy stock bump stops. More cushion.
Where i really feel the difference is in the stabilty of excessive side sway when turning while loaded.
I have a gig coming up that will involve some unpaved mountain roads to get there so I think i will have a real goid idea of how these Timbren's will perform.
Instalation took me about an hour at 11 p.m.
The product it of the highest quality in design and build.
And Etrailer is a company that I would not hesitate to buy from in the future.
Thanks Dee Dee.
You rawk!!
I have about 250 lbs. of static load with my topper and Decked cargo system. This put my install gap with no spacers just under the reccomended 1 inch minimum.Then add a couple hundred more pounds hauling music gear 100 shows a year, and the stop is resting on the axle.
I feel the absorption of the Timbren material is better than the flimsy stock bump stops. More cushion.
Where i really feel the difference is in the stabilty of excessive side sway when turning while loaded.
I have a gig coming up that will involve some unpaved mountain roads to get there so I think i will have a real goid idea of how these Timbren's will perform.
Instalation took me about an hour at 11 p.m.
The product it of the highest quality in design and build.
And Etrailer is a company that I would not hesitate to buy from in the future.
Thanks Dee Dee.
You rawk!!
Christopher H.
8/14/2026
Love hearing this! Really appreciate the detailed feedback and photos. That extra stability when you're loaded up can make a huge difference. And installing them at 11 at night—that's commitment. Hope they treat you just as well on those mountain roads. Safe travels and we'll definitely make sure Dee Dee gets the shoutout.
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- What is the Towing Capacity of a 1995 Chevrolet C/K Series PickupThere are several different towing capacities for a 1995 Chevrolet C/K Series Pickup. These capacities will vary depending on engine size, wheel base, drive type, gear ratio, etc. Therefore, the only true way to tell what your trucks towing capacity is would be to find both the Gross Combined Weight Rating (GCWR) and the Gross Vehicle Weight (GVW). These figures can be located on the information tag inside the drivers door jamb. If you subtract the GVW from the GCWR, that will give you...
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- What is Purpose of Black Spacers that Come with Timbren Suspension Kit # TGMRCK25The Timbren kit part # TGMRCK25 that you referenced comes with two spacers which push the rubber spring further away from the bracket it is attached to which allows for it to engage at the proper time.
view full answer... - Timbren Suspension Enhancement For a 2000 Chevrolet K2500 Classic 4x4 PickupYes, the Timbren # TGMFK25S front springs will fit your 2000 Chevrolet K2500 pickup. The K-series trucks were the classic version while the 2500 began the new Silverado series of pickups. If you are looking for similar rear springs we have their Severe Service # TGMRCK35MA or Standard # TGMRCK25 springs. The severe service are best for applications which always have additional weight such as trucks with a salt spreader, camper or truck bed box.
view full answer... - Rear Suspension Enhancement Recommendation For 1996 GMC K2500 With Truck CamperThe Timbren Rear Suspension Enhancement System # TGMRCK25 are the correct fitment for your 1996 GMC K2500 Pickup. These provide up to 6,000lbs of support to your suspension components. They may help to level your vehicle but as they are designed to only provide support when there is additional weight on your suspension. Without additional weight they typically have around 1" of clearance to the axle. You will not loose any suspension travel and the Timbrens will help to absorb road shock...
view full answer... - Helper Spring Recommendation for 1996 GMC Sierra K2500 Carrying Truck Bed CamperWhen installed on an unloaded vehicle (no load in bed) there will be an approximately 1/2 to 1 inch gap between the Timbren Aeon spring and the axle tube. Once the bed is loaded with cargo or a slide-in camper, this gap will be taken up and the spring would be in direct contact with the axle tube. The Timbren # TUR350 you looked at isn't the correct fit for your 1996 K2500, you'll want to use # TGMRCK25 instead. The springs won't provide any lift, but will definitely provide up to 6000...
view full answer... - Timbren Rear Suspension Enhancement for a 1998 Chevy C/K Series 1500There are 2 different Timbren systems available for a 1998 Chevy C/K series 1500. If you have 4 wheel drive you will need # TGMRCK25. If you have 2 wheel drive you will need # TGMRC25HD. I have included links to the instructions for each and an FAQ on Timbren systems for you. The system you have referenced only goes back to 1999 models.
view full answer... - Suspension Enhancement Recommendation for 1993 GMC K1500 with Camper in BedThe Timbren suspension kit part # TGMRCK25 is your best option for suspension enhancement for your 1993 GMC K1500. This will give you an additional 6,000 lbs of suspensions support which will get rid of the sag you are experiencing due to the camper you have in the bed of your truck. I recommend this kit over the other styles as it provides great support like mentioned, installs easily, and requires zero maintenance. It also works whether you have overload springs or not on your truck so...
view full answer... - Thickness of Spacer that Comes with Timbren Kit # TGMRCK25The thickness of the spacer that comes with the part # TGMRCK25 is 1 inch. Since you have a 2 inch lift you'd also need spacers # A25723-90AH00 to compensate for that. These are 1 inch so you'd need a quantity of 4 of these.
view full answer... - Timbren Rear Suspension Enhancer # TGMRCK25 Recommendation for a 1996 Chevy C/K TruckThe Timbren Rear Suspension Enhancement System, part # TGMRCK25, is much easier to install than air springs, no air hoses need to be run, no compressors or gauges to hook up. This kit will also not affect your unloaded ride quality as much as adding a leaf to your suspension would. The # TGMRCK25, would only be used when you were hauling enough weight to use a significant portion of your suspension, otherwise the ride of your vehicle would be completely unaffected. That would be the main...
view full answer... - Suspension Enhancement that Fits 2000 Chevy K2500 with In-Bed HitchI have a solution but none of the air bag kits that fit your 2000 Chevy K2500 fit with in-bed hitches like a gooseneck. So instead you'd need to go with a jounce spring style kit like the Timbren part # TGMRCK25 which is compatible and would work great.
view full answer... - Timbren Rear Suspension Enhancement Fit for 1988 GMC Sierra 1500There is a Timbren Rear Suspension Enhancement System that fits a 1988 GMC Sierra 1500, though not the part # TGMRCK25D you referenced, which is only a fit for the 2500. Instead, the correct part for your '88 Sierra 1500 will depend on if your truck is 2WD or 4WD: - 2-Wheel Drive: Timbren Rear Suspension Enhancement System # TGMRC25HD - 4-Wheel Drive: Timbren Rear Suspension Enhancement System # TGMRCK25 These Timbrens absolutely come with the brackets and everything needed for installation;...
view full answer... - Recommended Trailer Hitch and Suspension Enhancements for a 1992 GMC C/K Series PickupIt sounds like you're looking for a trailer hitch and suspension enhancements for a 1992 GMC C/K Series Pickup. If that is the case we have some great options. I recommend the Curt Trailer Hitch Receiver part # C14081 for a trailer hitch. It's a bolt-on option rated up to 10,000 lbs. Then for suspension enhancements, I recommend the Timbren Rear Suspension Enhancement System part # TGMRCK25 which will help level the truck when towing a heavy trailer.
view full answer... - Does the Timbren Spring Kit # TGMRCK25 Fit a 1996 GMC 1500 TruckFrom an install point of view the part # TGMRCK25 will still install just fine since the spring attaches to the frame of the truck and not the axle. If the axle is larger or smaller in diameter it would change when the spring engages. If it was bigger it would engage sooner or if it was smaller it would engage later.
view full answer... - Suspension Enhancement that Fits 1998 Chevy K2500 with In-Bed Gooseneck HitchFor your 1998 Chevy K2500 we have suspension enhancement that fit with an in-bed hitch like the Timbren part # TGMRCK25 but we do not have any air bag kits that fit your truck configuration.
view full answer... - Rear Helper Springs for a 1991 Chevy K1500 and 18 Foot Car Hauler TrailerI can help you select some helper springs for your 1991 Chevy K1500. But you should know that helper springs do not increase the capacity of the truck they only offer support. The Firestone air bags # F2025 are one option for your truck. They will provide you will the most adjustability of the options and are great if you carry a lot of different size loads or trailers. You will need to add/remove air though which you can do if you have a compressor or you could add an onboard compressor...
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Keith A.
5/26/2019
They are still working great no regreats