PPE HEAVY DUTY REAR ALUMINUM DIFFERENTIAL COVER RAW FORD F250/F350 10.25 & 10.50 INCH - 338051000 Raw finish provides optimum heat transfer. Internal and external cooling fins Includes: Zinc-plated Allen head mounting bolts - 3/8", O-ring sealed drain plug - Billet 304 stainless steel Neodymium magnet equipped fill plug Part Number: 338051000 (Raw) Available for: 1986 to 2016 and 2017 with 12 bolts, Ford Excursion, F250/F350 (non dually), (10.25 and 10.5)