2025-2026 GMC Sierra 1500 | HD Kit

I drive a 2025 GMC Sierra half ton for my day to day use. I am a fan of GMC equipment for the past 40 years. This newer half ton rides great up and down the freeway but after the new suspension break in period (180 days), the ride around town, in and out of drive approaches, over freeway and river overpasses, the back end was noticeably way too soft. Twice I had the truck into the dealer to replace the back springs and shackles. Finally I took the truck to my buddy and he showed me the RAS Spring. Wow, what a game changer! I paid over $68K for a new pickup and it took another $550.00 to make it a truck with suspension. Best aftermarket find I have added in a long time. Thank you RAS.

I’m very happy with the RAS on my 2025 GMC 1500 Denali. The system didn’t affect the ride but really reduces the squat with a heavy toung trailer. I highly recommend this system for the Denali with the active shock absorbers. I was having trouble finding an air assist system that will fit with the Magnaride shocks. This system slides right in and is super easy to install.

I tow a small RV with my Sierra 1500 and just could not get rid of the squat. And the ride was very sloppy. Added RAS and solved the squat. And the ride is great with and without towing my RV. Very noticeable when not towing as the wheel feel planted to the road. Would do it again.