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Timbren GMRCK15S Suspension Enhancement System

4.4 4.4 out of 5 stars 425 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Automotive Replacement Air Suspension Kits by Timbren
$267.99
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Purchase options and add-ons

  • Eliminate Suspension Sag And Cushion Road ShockReduce Sway And Improve Roll StabilityEasy To Install With Basic Hand ToolsImproves Roll ControlTrouble And Maintenance Free
  • Easiest to use: Rubber cushions absorb road shocks and automatically adjust to uneven loads or road conditions
  • Easiest to maintain: There are no airlines or fittings to allow leaks; Simply bolt the kit on and you are set for a lifetime of trouble free suspension;Easiest to install: There are no holes to drill, no airlines to route and SES Kits can be installed in a matter of minutes using basic hand tools
  • Suspension Enhancement System
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Frequently bought together

Timbren GMRCK15S Suspension Enhancement System
$267.99
Get it as soon as Saturday, May 11
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Sold by Dune Auto Company and ships from Amazon Fulfillment.
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Timbren Ses Spacer Kit
$53.06
Get it May 10 - 17
Only 1 left in stock - order soon.
Ships from and sold by What America Buys.
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Product Description

Timbren Suspension Kits (SES Kits) are designed to enhance the suspension of your vehicle. Easiest to use: Rubber cushions absorb road shocks and automatically adjust to uneven loads or road conditions. Easiest to maintain: There are no airlines or fittings to allow leaks. Simply bolt the kit on and you are set for a lifetime of trouble free suspension.Easiest to install: There are no holes to drill, no airlines to route and SES Kits can be installed in a matter of minutes using basic hand tools. The softer ride quality of todays trucks and the mediocre suspensions found on most trailers can cause excessive trailer sway, instability and suspension settling.Timbrens high performance suspension packages will ensure added safety and peace of mind.

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What's in the box

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    • Product guides and documents

    Installation Manual (PDF)

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    Suspension Enhancement System GMRCK15S Compatible With Chevy Silverado 1500 and GMC Sierra 1500, Rear pickup truck, Weight Capacity 8600 lbs, Suspension Rubber Helper Spring Kit
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    Price$267.99$269.36$269.36$59.99$269.36$269.36
    Delivery
    Get it as soon as Saturday, May 11
    Get it May 8 - 13
    Get it May 8 - 13
    Get it as soon as Saturday, May 11
    Get it May 9 - 13
    Get it May 8 - 13
    Customer Ratings
    4.44.4 out of 5 stars425
    5.05.0 out of 5 stars7
    4.34.3 out of 5 stars2
    4.04.0 out of 5 stars27
    5.05.0 out of 5 stars11
    5.05.0 out of 5 stars1
    Sold By
    Dune Auto Company
    T Squared Industries
    ONE HIGHWAY
    rui an shi hong guang ke ji you xian gong si
    Advance Cycle Parts
    ONE HIGHWAY

    Looking for specific info?

    Customer reviews

    4.4 out of 5 stars
    4.4 out of 5
    425 global ratings

    Customers say

    Customers like the quality, ease of installation, value, stability and performance of the auto part. For example, they mention it works good, it's easy to install and well worth the price. That said, some dislike stiffness and differ on ride quality.

    AI-generated from the text of customer reviews

    55 customers mention51 positive4 negative

    Customers are satisfied with the quality of the suspension kit. They mention that it works well, is easy to install, and provides a smooth ride. Some say that the suspension kits perform flawlessly. However, some customers report that the ride quality is not noticeable until the truck is loaded.

    "Arrived quick! Install easy. Performance flawless. A must have for camper towing!" Read more

    "...No noticeable difference in ride quality until I load up the truck, then the truck handles much better with more stability in turns than with the..." Read more

    "...Update put about 300mi hauling the tt bosters & work great definitely a little stiffer while under load...." Read more

    "However, easy to install and well made. Probably worth the money. Time will tell. Only dislike is the thump when not loaded and hitting bumps...." Read more

    50 customers mention50 positive0 negative

    Customers find the installation of the auto part very easy.

    "Arrived quick! Install easy. Performance flawless. A must have for camper towing!" Read more

    "...Easy install that makes a major difference with hauling any weight in the truck...." Read more

    "Easy install. The day before they came i sprayed some pb blaster in the opening. 10mm socket for the old ones and 17mm for the timbren...." Read more

    "However, easy to install and well made. Probably worth the money. Time will tell. Only dislike is the thump when not loaded and hitting bumps...." Read more

    19 customers mention15 positive4 negative

    Customers like the value of the auto part. For example, they mention it's well worth the price, and the cost is lower than an air bag system. Some say it'll stiffen their suspension.

    "...Good upgrade for the money spent." Read more

    "However, easy to install and well made. Probably worth the money. Time will tell. Only dislike is the thump when not loaded and hitting bumps...." Read more

    "...they were not terribly easy to install, they have proven to be worth the money. Hence, I have bumped my rating up from 3 stars to 4 stars." Read more

    "...Well worth $200 and will save the rear end of my truck a lot of wear and tear. Installed on a 2017 Silverado 1500...." Read more

    15 customers mention15 positive0 negative

    Customers are satisfied with the stability of the auto part. For example, they mention it provides more stability when towing, provides a smooth ride, and absorbs shock. Some say the overall ride remains the same. That said, they say it's able to tow a heavier load with smoothness and ease, and that it takes a ton of sway out when hauling a big load.

    "...in ride quality until I load up the truck, then the truck handles much better with more stability in turns than with the stock bumpers...." Read more

    "Have had 2 trips pulling my RV with thses added. The Squat and stability is so much metter. I have started telling people they need these...." Read more

    "Able to tow a heavier load with smoothness and ease." Read more

    "...It solved that problem and also took a ton of sway out when I’m hauling a big load ...." Read more

    11 customers mention11 positive0 negative

    Customers are satisfied with the performance of the suspension enhancements. They mention that it helps stabilize their truck while towing, solves their suspension problems, and keeps the truck level. Some say that it eliminates rear end sag and is perfect for extra suspension for their pickup.

    "The Timbren suspension enhancements do eliminate any sag in the suspension when loaded...." Read more

    "...No more sag in the rear. Should be a big help with people flashing brights at me thinking mine are on when really the rear end is just down too far...." Read more

    "...It also helped stabilize my truck while towing. It does cause my truck to ride a little more roughly when not loaded, but I can live with that." Read more

    "...no more sagging truck." Read more

    20 customers mention11 positive9 negative

    Customers are mixed about the ride quality of the auto part. Some mention that it makes for a better towing ride, and that the unloaded ride is virtually unaffected. However, others say that the ride is rough and disappointing when loaded.

    "Arrived quick! Install easy. Performance flawless. A must have for camper towing!" Read more

    "...Having an empty bed, or not pulling a trailer, the ride is a little rougher than expected." Read more

    "...Has about 2 inches of space before touching so ride quality isn’t effected unloaded. Fast delivery. 5 stars" Read more

    "...When driving with no load (most of the time) the ride is terrible...." Read more

    6 customers mention0 positive6 negative

    Customers are dissatisfied with the stiffness of the auto part. They mention that it's a little stiffer while under load and firm when empty. Some say that the bumpers are too hard and cause the effect of weightlessness in the driver.

    "...300mi hauling the tt bosters & work great definitely a little stiffer while under load...." Read more

    "...The bumpers are too hard and cause this effect of weightlessness in the driver seat when you hit a dip on the highway, lucky for the seatbelt...." Read more

    "...I did notice with cab full of people the ride was stiffer, but didn't notice with two people and no load...." Read more

    "...The truck rides a little more stiff when unloaded but barely noticeable...." Read more

    5 customers mention0 positive5 negative

    Customers are dissatisfied with the bump resistance of the auto part. They mention that the hard bump stops make for a rougher ride and bottom out on bumps. Some say that the bumps feel like they are going into their spine.

    "...These are just huge hard bump stops." Read more

    "...Rear doesn't bounce so far over bumps, so yeah, it's a little rougher, but it's a pickup not a 4WD car...." Read more

    "Good for there purpose but makes it a lil rough over bumps but I do recommend." Read more

    "...However it does make for a rougher ride it bottoms out on bumps but.its a truck and I use it so well worth the money." Read more

    Works as described
    4 Stars
    Works as described
    I received these today and installed them in about 30 minutes. Most of that time was taken in lifting each side of the truck. I would say it was a very easy installation. I went for a test drive and on smooth to mostly smooth roads there was no degradation in the ride quality; however, the second I went over a speed bump or deeper gutter or something like that you could tell the difference - they hit hard (as expected). I pull a 33 ft/7500 lb (fully loaded) travel trailer several times a year and this year also purchased a 2020 GMC Sierra 1500 SLT w/ Max Trailering package (nht). This truck has plenty of power for the trailer and all gear but for some reason - even after fine tuning a new equalizer brand WDH - it squats a bit with the load of the full trailer (no squat with empty trailer). I've taken all weights and am well within all load limits (payload, max tongue weight, GVWRs, GCVWR, max trailer weight, etc). I'm hoping these Timbrens will solve this problem. I'll find out in a couple of days as we are about to go out again this weekend. Crossing my fingers!
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    Top reviews from the United States

    landshark
    5.0 out of 5 stars Worth it
    Reviewed in the United States on November 21, 2023
    Verified Purchase
    Arrived quick! Install easy. Performance flawless. A must have for camper towing!
    Helpful
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    Glen E Thomas
    5.0 out of 5 stars Quick install on 2016 Silverado
    Reviewed in the United States on October 3, 2020
    Verified Purchase
    Total time to install was less than 30 min from the time I jacked up the truck to removing the jack. Easy install that makes a major difference with hauling any weight in the truck. No noticeable difference in ride quality until I load up the truck, then the truck handles much better with more stability in turns than with the stock bumpers. Good upgrade for the money spent.
    One person found this helpful
    Helpful
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    fabian pineros jr
    5.0 out of 5 stars Set it and forget it.
    Reviewed in the United States on June 4, 2019
    Verified Purchase
    Easy install. The day before they came i sprayed some pb blaster in the opening. 10mm socket for the old ones and 17mm for the timbren. I used hand tools and found its easier to take a tire off by doing that you dont have to lay on the ground. Took maybe 25min . Towing and 31 foot TT and dont like the whoops in the road. Update put about 300mi hauling the tt bosters & work great definitely a little stiffer while under load. Only time I feel them without load are speed bombs of shitty roads.. body real is much less while I lift alot.. If you have the money for high end air bags thats a better choice. For me, these are install and forget ZERO Maintenance..
    Customer image
    fabian pineros jr
    5.0 out of 5 stars Set it and forget it.
    Reviewed in the United States on June 4, 2019
    Easy install. The day before they came i sprayed some pb blaster in the opening. 10mm socket for the old ones and 17mm for the timbren. I used hand tools and found its easier to take a tire off by doing that you dont have to lay on the ground. Took maybe 25min . Towing and 31 foot TT and dont like the whoops in the road. Update put about 300mi hauling the tt bosters & work great definitely a little stiffer while under load. Only time I feel them without load are speed bombs of shitty roads.. body real is much less while I lift alot.. If you have the money for high end air bags thats a better choice. For me, these are install and forget ZERO Maintenance..
    Images in this review
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    14 people found this helpful
    Helpful
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    Jef K
    4.0 out of 5 stars Costly chunk of rubber.
    Reviewed in the United States on December 16, 2023
    Verified Purchase
    However, easy to install and well made. Probably worth the money. Time will tell. Only dislike is the thump when not loaded and hitting bumps. Spaced at 1-1/2". All in all, I do like the performance when loaded and can get used to thump unloaded.
    Helpful
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    Lauren
    5.0 out of 5 stars Liked so much bought second kit
    Reviewed in the United States on April 4, 2015
    Verified Purchase
    I want to thank the seller for the speedy shipping. The seller offers free shipping and I got the Timbren kit in 2 days. Faster than Amazon prime shipping. I Had a timbren kit on my Nissan Titan and loved it. I moved cross country with the bed of my truck stuffed from the floor to the cap. There was absolutely no room left in my truck. Even my back seat was stuffed. Plus I had a dirt bike carrier for my trailer hitch that went across the back of the truck with my 450LBS dual sport motorcycle on it. There was absolutely no way I could of made the trip without the timbren kit. I have since sold the truck and got a silverado. This kit I just bought is for that truck. I don't necessarily need it right now, but when I do, I know it will be there. allowing my truck to handle a load without sagging. Plus making it a more stable and safe ride. Very satisfied with product and very satisfied with seller.
    2 people found this helpful
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    jesgamble
    5.0 out of 5 stars Great product
    Reviewed in the United States on April 15, 2022
    Verified Purchase
    Was easy install on my 2002 Silverado z71 1500. Has about 2 inches of space before touching so ride quality isn’t effected unloaded. Fast delivery. 5 stars
    Helpful
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    Jayson
    1.0 out of 5 stars Poor quality
    Reviewed in the United States on December 16, 2023
    Verified Purchase
    First ordered parts and had to wait a week longer then expected , then get notice from carrier stateing order being held for me to come pickup at carrier fascility , instead of shipping to my home . Then when installing bolts give u lowest grade of bolts they can instead of 2 grade 8 bolts . And go to put them on and while tightening them down break in half cause to wimpy , I mean if I pay $ xxx.xx for something at least give quality parts to use instead of junk . Very unhappy and dissatisfied customer
    Helpful
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    michael oconnor
    5.0 out of 5 stars Prevents the SAG
    Reviewed in the United States on August 17, 2021
    Verified Purchase
    Have had 2 trips pulling my RV with thses added. The Squat and stability is so much metter. I have started telling people they need these. Easy to install and only works when you are Loaded is a win for me.
    One person found this helpful
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    Top reviews from other countries

    Translate all reviews to English
    Brian
    5.0 out of 5 stars Works great, highly recommended
    Reviewed in Canada on April 29, 2022
    Verified Purchase
    Installed on my 2017 Sierra 1500. Got them to help handle hauling my sled around in the box as well as towing my enclosed trailer and travel trailer. Needed the optional spacer kit as I have a 2.25 readylift block in the rear. Ended up with about 1.4 inch gap unloaded(recommended 0.5 to 1.5 gap). Used the 1 inch spacer included with that spacer kit. Rides like stock when empty and handles fantastic when loaded. More stable in the corners and confidence inspiring over bumps. Pretty much feels like a 2500 when loaded. Well worth the money in my opinion.
    Report
    Aaron
    5.0 out of 5 stars Worth every penny.
    Reviewed in Canada on June 13, 2021
    Verified Purchase
    Install would’ve been super easy if the stock bolts weren’t rusted af. But it was worth every minute of struggle. These are great in my 2016 Sierra 1500. It’s only been a few days so I can’t speak for the longevity of the product, but they seem very solid. 10/10 would buy again.
    One person found this helpful
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    Daylan
    5.0 out of 5 stars Amazing product
    Reviewed in Canada on June 14, 2019
    Verified Purchase
    Amazing put these on my stock serria 1500 and it's night and day the difference the truck only squats an inch or so when towing a 7000lbs dump trailer.

    Instalation was super easy just jack truck up as high as you can until wheels start to lift. Grab 10mm socket and extension peice and remove the stock bump stops. Have a breaker bar ready mine were rusted on pretty bad (northern Canada) and install the product no more then 15min install easy do it your self. I've had airbags in the past and I prefer these
    5 people found this helpful
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    Amazon Customer
    4.0 out of 5 stars Came in quick, easy to install, nothing close to air suspension
    Reviewed in Canada on August 12, 2020
    Verified Purchase
    I installed these on my truck after reading reviews and watching many videos all saying positive things about Timbren. They are easy to install (15 min each) but they can't hold my trailer what so ever. I have a 7600 lbs trailer (toy hauler) and I could keep my previous truck leveled very easily with about 50 to 60 lbs of air in them. I've installed the torsion bars and with the Timbren it is leveling my truck and holding good. I went for a drive and I must say the drive is much better, much more stable on the road, no more swinging up and down, etc....they are worth the money if you don't want the trouble of installing the air suspension and want very good reliability for a third of the price. I'm satisfied with my purchase.
    2 people found this helpful
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    Carl C.
    5.0 out of 5 stars Lorsque chargé pour la peine, ça vaut le coup
    Reviewed in Canada on November 3, 2021
    Verified Purchase
    Installé sur mon GMC Sierra Elevation 2019 avec cabine LEER, je traine un trailer fermé 12 pieds avec environ 1200lbs de charge. Lorsque le trailer n'est pas là, je sens les Timbrens s'accotter sur l'essieux quand il y a des trous ou bonnes bosses, pour vivre au Québec, c'est chose fréquente. Avec le trailer, ils sont accottés sur l'essieux et la suspension devient maintenant les Timbrens. Ce n'est pas une suspension à l'air donc porte plus dur, mais se conduit mieux. On sens vraiment plus les bosses avec le trailer, probablement car il n'est pas assez chargé pesant. Après une semaine d'utilisation je compte bien les laisser en place quand même.
    Customer image
    Carl C.
    5.0 out of 5 stars Lorsque chargé pour la peine, ça vaut le coup
    Reviewed in Canada on November 3, 2021
    Installé sur mon GMC Sierra Elevation 2019 avec cabine LEER, je traine un trailer fermé 12 pieds avec environ 1200lbs de charge. Lorsque le trailer n'est pas là, je sens les Timbrens s'accotter sur l'essieux quand il y a des trous ou bonnes bosses, pour vivre au Québec, c'est chose fréquente. Avec le trailer, ils sont accottés sur l'essieux et la suspension devient maintenant les Timbrens. Ce n'est pas une suspension à l'air donc porte plus dur, mais se conduit mieux. On sens vraiment plus les bosses avec le trailer, probablement car il n'est pas assez chargé pesant. Après une semaine d'utilisation je compte bien les laisser en place quand même.
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