Aluminum front side diff bulkhead block dish enhance the front differential height and improves the driveshaft angles, creating more traction on part exit while improving mid corner rotation. The enhanced driveshaft placement also helps to expand the service periods for the driveshafts CV bones and pins, together with diff outdrives. Machined from Swiss 7075 T6 aluminum and black coated. Fits both GTX and GTXE.