MOTOBILT DIFF COVERS are fabricated from 3/8" thick steel rings, and 1/4" thick formed steel bodies. We curently offer heavy duty diff covers for the Dana 44, Dana 60, Dana 80, and Corp 14 Full Float axle. We are very close to releasing many other versions. The Motobilt founder, Dan DuBose, essentially shaped the fabricated diff cover market into what it is today with a previous company he founded in 2001 and grew in the early 2000's. In the coming months we will be adding more diff covers to include the Ford 8.8, Dana 30, Dana 35, and more.