ReadyLift 44-3070 Max Lift: 8" Suspension 11-16 Chevy Silv/Sierra 2500/3500 HD 4wd Kit-7-8in w/UCA Lift: Adj. 7"-8" Complete front/rear Lift system Includes (4) SST3000 Shocks Includes Tubular Upper Control Arms Allow for up to 37" Tall tires