Fabtech’s ball-joint UCA lift kit for 2020–2021 GM K3500HD includes Dirt Logic shocks front and rear to provide a 3.5" lift and improved offroad damping. Replacing factory upper control arms with reinforced tubular designs and matched shocks, the kit emphasizes consistent handling, preserved ground clearance, and better ride control during aggressive use, while retaining steering geometry and ease of installation where possible.

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