Supersprings SSR-217-40 SumoSprings Solo Kits Are Replacements To Factory Bump Stops Capacity 1000 lbs. At 50 Percent Compression Do Not Exceed GVWR SumoSprings

Easily Installed on 2018 Chevy 1/2 ton 4x4. Fits perfectly and helps to prevent the serious sagging suspension I had with the 32 ft RV hooked up to it. I'm personally not experiencing stiff or hard suspension with no load on it. Recommend this as a cheap alternative to air bags.

Edit update: after a month of driving with sumo springs always touching with the spacer, the ride quality is now smoother. Seems like the sumo springs have worn in now and it feels like stock ride. No sag no roll everything perfect. Original post: My truck is leveled. It would sag in the rear when loaded a little bit and while accelerating loaded or unloaded it would sag. I installed this with the spacer on so it is touching all the time. It has fixed my issues no more sag or roll, loaded or unloaded. Even when accelerating the truck is leveled now. The ride feels the same without the extra bounce. Mind you the X31 rides stiffer than the regular ones so i don't notice it. Really happy with the purchase and best bang for your buck, we will see how it holds up in the winter in extreme cold here in Ontario, Canada. I have not seen any reviews for winter. I would highly recommend for leveled trucks or even if your not loaded all the time. It just rides better in my opinion

Bought a brand new silverado 1500 and the rear suspension is absolutely horrible for towing. I tow an 8000lb construction trailer 2-3 times a week. I have used air shocks and bags on previous vehicles, but was looking for a more simple option with less parts to fail. The sumosprings installed in 15 minutes and work awesome to stop the sag. I installed the spacers so they make contact all the time. I can't notice a difference in unloaded ride quality. Would definitely buy sumosprings again.

These are awesome! Great support without all the hassle of a bag full of air

Second time I've used Sumo Springs on a Silverado. First time on a 2021, 2500HD with a 2500 pound camper onboard all the time. The Sumo Springs were compressed about 3/4" with the vehicle loaded and provided leveling, roll stability and did not affect the ride quality. This time I installed them on a 2022, 1500 Silverado with 300 pounds of load in the bed all the time. The Sumo springs only have about 1/2" of free spring travel before coming into contact. With less vehicle spring travel before coming into contact, they provide a firmer ride without a heavy load (not really desired but tolerable). I have not towed our trailer since this install but expect less equalizer bar lift necessary to level out the tongue load. One thing to remember, Sumo springs will not increase the GVAR (gross vehicle axle rating) load your vehicle can carry, only assist in levelling a load and keeping your headlights aligned for night travel. I may contact the manufacturer and investigate trimming the length of the Sumo Springs to provide a little more free travel before coming in contact as I don't need 1500 pounds of support. I did not use the 1" spacer that came with the kit. This may be necessary for use on the Silverado Trail Boss which sit's 2" higher from the factory. Otherwise, these are a good option for assisting in leveling your loaded vehicle and have a smooth transition with no noise.