11-19 Gm 2500hd/3500 0-2" Stage 2 Suspension System Fautures 100% Bolt-On System - No Drilling, Cutting, Or Welding Necessary For Install 2.5 Aluminum Series Front And Rear Shocks Feature One-Piece Impact Extruded Aluminum Cylinders For Excellent Corrosion Resistance And Consistent Finish 6061 ...