B&M Cast Aluminum Differential Cover Ford 8.8 Inch Rear Axle Natural 40297 For Use On Ford 8.8 Rear Axles Except For I.R.S.;Cast From Aircraft Grade Aluminum;3/4in. Thick Mounting Lip For Leak Free Seal;Adjustable Bearing Cap Support Load Bolts;Magnetic Drain Plug;Extra Fluid Capacity with Has Drain Plug B&M B&M Ford 8.8 Inch Aluminum Cover - 40297 40297 Differential Covers