Specification: Placement on Vehicle: Front + Rear Front Lift Height: 3.5 inch Rear Lift Height: 1.5 inch Front Spacer Thickness: 3.5 inch Rear Block Thickness: 1.5 inch U-Bolt Size: 9/16"-18 Round - Long 13.58 inch Material: Steel Color: Black Compatibility chart: Fits 2003-2013 Dodge Ram 2500 4x4 Fits 2003-2012 Dodge Ram 3500 4x4 *Fits 3.5" Axle Only *Does Not Fit Models With Rear Overload Leaf Springs. Package include: 1 Set Leveling Lift Kit .