Tundra SR5, I fitted a Bilstien 5100 in the rear and a KYB Gas Ajust in the front two years ago and have never been satisfied. Installed a Gabriel Ultra front and rear and made big changes to comfort and stability. Now I feel like I have a better truck. If you don't have 4 wheels and you're not on top, you don't need a Bilstien. With Gabriel Ultras, your truck will feel safer on the road without sacrificing comfort.