Application Compatible for Chevrolet Silverado 1500 2500 3500 1999-2006 Compatible for Chevrolet Silverado 2500HD 3500HD 2001-2010 Compatible for GMC Sierra 1500 2500 3500 1999-2006 Compatible for GMC Sierra 2500HD 3500HD 2001-2010 Feature Rear Tank Support & Rear Shock Mount Crossmember Included Made from heavy gage steel that meets or exceeds manufacture specifications Easy to install No need to remove the truck bed, just remove the fuel tank, the old shock & cut away the remaining cross member. Set the replacement cross member in place, weld it solid, & reinstall your fuel tank & new shocks, & you're back on the road, safe & worry-free.