USA Standard Gear ring and pinion sets are designed to exceed OEM specification. All sets receive rigorous in-house quality evaluation to ensure products pass dimensional, material, and fitment testing.

• Fits GM 10.5 inch. Differential
• 3.42 Ratio
• 14 Ring Gear Bolts

Features and Benefits:

• Fits GM 10.5 inch. Differential
• 3.42 Ratio
• 14 Ring Gear Bolts

• AAP UDA 4:65
• Axle Type:Full Floating
• Material:8620 Alloy Steel
• Cover Bolt Quantity:14
• Gear Ratio:3.42
• Mounting Hardware Included:No
• Ring Gear Outside Diameter:10.5 inch
• Shims Included:No

138 1973-1974 Chevrolet C20 Pickup (Rear)

• 1973-1974 Chevrolet C30 Pickup (Rear)
• 1973-1974 Chevrolet K20 Pickup (Rear)
• 1972-1974 Chevrolet K30 Pickup (Rear)
• 2009-2015 Chevrolet Express 4500 (Rear)
• 1991-2002 Chevrolet C3500HD (Rear)
• 2007 Chevrolet Silverado 2500 Hd Classic (Rear)
• 2002-2006 Chevrolet Avalanche 2500 (Rear)
• 1975-1986 Chevrolet C20 (Rear)
• 1973-1986 Chevrolet C20 Suburban (Rear)
• 1988-2000 Chevrolet C2500 (Rear)
• 1992-1999 Chevrolet C2500 Suburban (Rear)
• 1975-1986 Chevrolet C30 (Rear)
• 1988-2000 Chevrolet C3500 (Rear)
• 1996-2015 Chevrolet Express 2500 (Rear)
• 1975-1995 Chevrolet G20 (Rear)
• 1996-2015 Chevrolet Express 3500 (Rear)
• 1979-1996 Chevrolet G30 (Rear)
• 1975-1986 Chevrolet K20 (Rear)
• 1973-1986 Chevrolet K20 Suburban (Rear)
• 1988-2000 Chevrolet K2500 (Rear)
• 1992-1999 Chevrolet K2500 Suburban (Rear)
• 1977-1986 Chevrolet K30 (Rear)
• 1988-2000 Chevrolet K3500 (Rear)
• 1997-1999 Chevrolet P30 (Rear)
• 1987-1988 Chevrolet R20 (Rear)
• 1987-1988 Chevrolet R20 Suburban (Rear)
• 1989-1991 Chevrolet R2500 Suburban (Rear)
• 1987-1988 Chevrolet R30 (Rear)
• 1999-2004 Chevrolet Silverado 2500 (Rear)
• 2001-2015 Chevrolet Silverado 2500 Hd (Rear)
• 2000-2013 Chevrolet Suburban 2500 (Rear)
• 1987 Chevrolet V20 (Rear)
• 1987-1988 Chevrolet V20 Suburban (Rear)
• 1989-1991 Chevrolet V2500 Suburban (Rear)
• 1987-1988 Chevrolet V30 (Rear)
• 2007-2013 Chevrolet Silverado 3500 Hd (Rear)
• 1973-1974 GMC C25/C2500 Pickup (Rear)
• 1973-1974 GMC C25/C2500 Suburban (Rear)
• 1973-1974 GMC C35/C3500 Pickup (Rear)
• 1967-1974 GMC K25/K2500 Pickup (Rear)
• 1973-1974 GMC K25/K2500 Suburban (Rear)
• 2009-2015 GMC Savana 4500 (Rear)
• 2001-2002 GMC C3500HD (Rear)
• 2015 GMC Yukon Xl (Rear)
• 2007 GMC Sierra 2500 Hd Classic (Rear)
• 1979-2000 GMC C2500 (Rear)
• 1979-1999 GMC C2500 Suburban (Rear)
• 1979-2000 GMC C3500 (Rear)
• 1979-2000 GMC K2500 (Rear)
• 1979-1999 GMC K2500 Suburban (Rear)
• 1979-2000 GMC K3500 (Rear)
• 1987 GMC R2500 (Rear)
• ...