Fabtech’s ball-joint UCA lift kit for 2020–2021 GM K3500HD provides a 3.5" lift with Dirt Logic performance shocks for enhanced damping. The kit replaces factory arms with stout tubular components and steering knuckles tuned to retain proper ESC function and ground clearance. Designed for improved ride quality and offroad control, the system balances strength and straightforward installation for heavy-duty applications.

Fabtech 20-21 GM K3500HD 3.5in Bj UCA Kit w/Perf Shks