Readylift 69-3070 SST 2.25" Front and 1.5" Rear SST Lift Kit Max Lift: 2.25"F/1.5"R For 4WD Torsion Key vehicles only 2WD Coil Spring Trucks use 69-3075 Will never wear, break or fail - Guaranteed Applicable on 2004-2010 Chevy colorado 2 wheel drive torsion bar and 4 wheel drive GMC Canyon and 4 wheel drive Hummer H3/H3T 4 wheel drive with rear coil