Spectre's Differential Covers are made to OEM specifications and are triple chrome plated for a lasting shine. Designed to protect the intricate moving parts of the differential, Spectre's covers add an extra layer of protection to the vehicle's underside. Featuring a 10-bolt design and fits the following vehicles with 8.8 inch ring gears: 1986-2003 Ford Mustang/Capri V8, 1983-2003 Ford F150/Bronco two or four wheel drive, 1991-2003 Ford Explorer two or four wheel drive, 1983-1998 Ford E150/250, and 1994-2003 Mazda 4000 differentials. Includes 10 SAE standard chrome bolts for installation. You'll need to supply your own bolts if your application requires metric bolts.