Our patent pending Leverage-Link Double Shock System allows the use of long travel shocks in the limited space of the modern 4x4 wheel well. This gives total damping control, while offering a smoother ride than conventional after market shock kits. Part Number Application 430-100-201 01'-05' Chevy/GMC 1500 430-100-202 01'-05' Chevy/GMC 2500/GMC 3500 (Available Fall 06')