Early Duramax Polished Aluminum Differential Cover for 10.5" GM 14 Bolt Rear Axle

Fits early Duramax trucks with 10.5" ring gear rear axle. This early rear axle has a bolt in pinion support. Will not fit AAM 11.5".

COMPATIBLE DIFFERENTIALS GM 10.5" 14 Bolt Truck, '84-'85 Only GM 10.5" 14 Bolt Truck, '88 & older (excluding '84-'85) GM 10.5" 14 Bolt Truck, '89-'98 GM 10.5" 14 Bolt Truck, '99 & up COMPATIBLE MAKE / MODEL Chevrolet / Chevy Avalanche 2500 (2002 - 2006) Chevrolet / Chevy C20 3/4 Ton (2WD) (1973 - 1983) Chevrolet / Chevy C2500 3/4 Ton (2WD) (1989 - 1998) Chevrolet / Chevy C30 1Ton (2WD) (1973 - 1983) Chevrolet / Chevy C3500 (1989 - 1998) Chevrolet / Chevy Express Van 2500 3/4 Ton (1996 - 1998) Chevrolet / Chevy Express Van 3500 1 Ton (1996 - 1998) Chevrolet / Chevy Express Van 4500 (2009 - 2015) Chevrolet / Chevy G20 3/4 Ton (1975 - 1983) Chevrolet / Chevy G30 1 Ton (1979 - 1983) Chevrolet / Chevy K20/K2500 3/4 Ton (4WD) (1973 - 1983) Chevrolet / Chevy K30/ K3500 1 Ton (4WD) (1972 - 1983) Chevrolet / Chevy P30 1 Ton Van (1997 - 1998) Chevrolet / Chevy P3500 (1997 - 1998) Chevrolet / Chevy Silverado 2500 3/4 Ton (1999 - 2015) Chevrolet / Chevy Silverado HD 2500 3/4 Ton (1999 - 2015) Chevrolet / Chevy Silverado HD 3500 1 Ton (2001 - 2013) Chevrolet / Chevy Suburban 3/4 Ton (1973 - 1983) GMC C25/ C2500 3/4 Ton (2WD) (1973 - 1983) GMC C35/ C3500 1 Ton (2WD) (1973 - 1983) GMC G15/ G1500 1/2 Ton (1981 - 1983) GMC G35/ G3500 1 Ton (1979 - 1983) GMC K25/ K2500 3/4 Ton (4WD) (1966 - 1988) GMC K35/K3500 1 Ton (4WD) (1977 - 1983) GMC Savana 2500 3/4 Ton (1996 - 1998) GMC Savana 3500 1 Ton (1996 - 1998) GMC Savanna 4500 (2009 - 2015) GMC Sierra 2500 3/4 Ton (1999 - 2015) GMC Sierra 2500 HD 3/4 Ton (1999 - 2015) GMC Suburban 3/4 Ton (1973 - 1983) GMC Yukon 2500 3/4 Ton (1992 - 1998) GMC Yukon XL 2500 3/4 Ton (2006 - 2015)