Redesigned front/rear diff bulkhead block set created from tough, rigid composite product. Strengthened for better bearing seating and improved tightness applying this differential and pinion. The bulkheads could be the mounting point for many suspension system system elements. The universal design enables the diff bulkhead block become installed at either front side or right back from car. Comfortable utilization of both front part and back differentials makes upkeep quite simple. Fits XB808.