ReadyLift OEM style rear block kits are now available for model specific applications. The Rear Block Kits will safely lift the rear of your truck and additional 1 in. -3 in. Based on OEM designs and never made out of light weight extrusions, our 1 in. Toyota and GM blocks are made of cast iron and our 3 in. GM blocks have Anti-Rotation ears built in. The Ford Super Duty 4 in. blocks have Integrated OEM style bump stops. These kits will put the rake back into your truck f or hauling or towing and are designed to work in concert with your ReadyLift Suspension Leveling Kit. Comes with a Limited Lifetime warranty.