2007-2021 Chevy / GMC Express, Savana 2500, 3500, 4500 Van, Cutaway - SumoSprings by SuperSprings [Front]

SumoSprings for the Silverado 1500 are now here for the rear of your vehicle. Due to customer request and demand, SumoSprings has taken their patented polyurethane foam technology and used it to make springs that will fit the rear of your pickup.

We haven't found anything that holds up better. The product underwent testing in extreme conditions ranging from blistering summer days to the frigid Canadian nights.

The SumoSprings are manufactured in a proprietary multi-stage process of casting that results in numerous benefits the competition simply does not have. The micro-cellular foam can provide you with...

• SumoSprings Jounce replaces existing factory bumpstop
• Minimal expansion under loading (works in confined spaces)
• Compressible up to 80%, extendable up to 30%
• Excellent resistance to the elements
• No air lines, bags or possibility of system failure
• QUICK, EASY INSTALLATION
• MADE IN THE USA
• No maintenance required - Fit it and forget it
• No-Drill Installations
• Sumo Springs level your load
• Reduce sag, sway, bottoming out with Sumo for the rear