The Slip Shaft Kit includes a universal joint for the column, a slip-universal joint for the steering box or rack and pinion, a 36" DD shaft, which can be cut to size, and protective bellows. The system allows for 3" of slip and collapsibility.Take the Play Out of Your Steering!Vibration Upgrade AvailablePlating and Polishing AvailableIncludes Two (2) Universal Joints: 3/4"-36 (steering column) and 3/4"-36 (steering box)