Clayton Off Road Inc. cross members are a 3 piece design. This 3 piece design allows us to bolt the cross member into the oem location, and weld it in for additional strength. The cross member incorporates the mounting locations for our long arms. Once the suspension is installed, the center section can still be removed in order to service the drivetrain. Cross member is designed to use a 2.5 inch Currie Johnny Joint with a 4 inch 9/16s grade 8 bolt.