Upgrade the suspension performance of your heavy-duty truck with the Rear SES Suspension Enhancement System designed for 2003–2009 Chevrolet and GMC T5500, T6500, T7500, T8500, as well as 1991–1996 Chevrolet C70 and GMC C6000/C7000 models. Engineered to provide superior load support, this rear suspension enhancement system helps reduce excessive sag, improve vehicle stability, and enhance overall ride quality when hauling heavy cargo or towing equipment.
Constructed from premium microcellular urethane, the SES springs work progressively to absorb road shock and distribute weight more efficiently. Unlike traditional air bags, this maintenance-free suspension solution requires no air lines, compressors, or manual adjustments. It automatically engages as the vehicle load increases, delivering consistent support without compromising ride comfort during unloaded driving.
Whether your truck is used for commercial deliveries, construction, utility services, agriculture, or fleet operations, this Rear SES kit helps reduce suspension stress, minimize body roll, and improve driver confidence on highways and rough job sites. The durable, corrosion-resistant components are built to withstand demanding work environments while extending the life of your factory suspension system.
Designed as a direct-fit replacement, the kit installs using existing mounting locations with minimal modifications, making it an excellent upgrade for work trucks that regularly carry heavy payloads or tow trailers.
