The Fabtech 6-inch lift system for 2020–2021 GM 2500HD 4WD with Dirt Logic 2.5 reservoir shocks and hardware provides a bolt-on suspension raise with vehicle-matched tuning. The shocks and components use urethane bushings and billet aluminum fittings, and the kit includes high-quality coil springs preset with proper preload. Installation preserves many factory locations for a straightforward fit.

Fabtech 20-21 GM 2500HD 4WD 6in Rts Sys w/Dlss Resi Shks