This is the XRAY Front/Rear Differential Bulkhead with Labyrinth Dust Covers. This Redesigned bulkhead block set is made from tough, rigid composite material, and has been strengthened for better bearing seating and improved stiffness of the differential and pinion. The differential bulkheads fit the larger and stronger 13x20 diff case ball-bearings. The bulkheads are the mounting point for all suspension parts, and the housing includes Labyrinth Dust Covers™ to keep dirt out of the bearings. The universal design allows the diff bulkhead block to be mounted at either front or rear ends of the buggy and provides easy access to both front and rear differentials reducing maintenance time.