Replace Part number: SPC4904BKKIT, 4904BKKIT, HR55075X.. Compatibility: Replacement for Chevy/GMC 3/4 & 1 ton 2WD/4WD Rear 1973-1987. Replacement for Dually 2WD/4WD Rear 1975-2000. Replacement for Suburban 2500 3/4 ton 2WD/4WD Rear 1988-1999.. Features: The cover includes the gasket and hardware kit (as shown in the photo). The kit is designed to replacement for 2500HD 3500HD Trucks Differential. This is a aluminum diff cover.. Product Name: Rear Aluminum 14 Bolts Diff 10.5 RG Differential Cover.. Note: Requires full floatingaxle. Some 2500 & 3500 do not have full floating axle..
