Pinion nut used on various Ford models from 1980-2020. Fits the 8.8 rear pinion. Part number 389546-S1001980-2020 Ford 8.8 Pinion nut 3/4"x20- 389546-S100SKU: 389546-S100-12224A $17.00 Regular Price$14.96Sale PriceQuantityAdd to CartBuy Now