Original post by Bryce Campbell of TrailTundra SUPERSPRINGS SUMOSPRINGS REAR BUMP STOP UPGRADE FOR 2ND GEN (2007-2021) TOYOTA TUNDRA – DETAILED INSTALLATION GUIDE, REVIEW & OVERVIEW Besides your driver’s seat and steering wheel, your Tundra’s suspension is likely the part of your truck that you feel the most. Given the capability of our trucks, especially with regard to payload and towing, it’s …