Ofna differential case and gears are planetary gear design. This will restores proper center diff performance and smooth operation. This kit includes diff case, diff bevel gears, O-Rings, 2x12.8mm Pins 4x10mm washers, gasket, cross pins, four 3x10mm tapping screws, 5x5mm set screw, 7x19mm ball bearings, cap joints and view sheet.

Installing on chassis following instructions in manual