Mag-Hytec Dana 80 Differential Cover call for fit Dana #80 MAG-HYTEC heavy-duty differential covers provide increased lubricating and cooling capacity for hard-working recreational and utility vehicles. MAG-HYTEC covers distinguish your vehicle in both aesthetics and function: cast in A356-T6 aluminum and textured black powder coated with machined cooling fins. Magnetic drain plugs trap worn gear material promoting fluid integrity. Each unit is equipped with ARP 568 O-rings for superior sealing. All hardware is 303 stainless steel, no gasket or sealant is required in most applications, and all MAG-HYTEC parts are covered by a limited lifetime warranty.