This Zone Offroad 4.5-inch rear block kit for 2020 Chevy/GM 2500/3500 HD includes overload capability and is specified to increase rear ride height by 4.5 inches. Offered as a direct-fit rear block kit, it’s intended for owners who need additional rear clearance or want to address rear sag while keeping vehicle-specific fit and installation considerations in mind.

Zone Offroad 2020 Chevy/GM 2500/3500 HD 4.5in Rear Block Kit w/ Overload