Vehicle Fitment Fits Toyota Tundra 1999-2006 4WD Only **The Differential Drop Kit Only For Tundra 4WD Models Item Description Placement on Vehicle: Front+Rear Front Lift Height: 2 inch Rear Lift Height: 2 inch Front Spacer Thickness: 1.02 inch Rear Block Thickness: 2 inch U-Bolt Spec: 9/16"-18 Square/ Long 10.2 inch Material: Aluminum+Steel Color: Black Key Selection Points .