Standard replacement precision ground upgraded material standard diff pin. Recommended for all standard differential rebuilds. For performance, use C-BTA164 moly coated pin with standard planet gears. Pay special attention to the condition of the planet wheels when rebuiling as they cause most of the damage to the pin especially when used under arduous conditions. Specially bushed planet wheels are available as DAM6624BUSHED or in a kit with the pin as C-BTA167. In severe conditions where the planet gears appear to break or severely wear the pin a special molybdenum coated pin is available as C-BTA164 but this molybdenum pin must not use bushed type planet gears.