Brand: Motive Gear
RP GM 8.5″ 8.6″ 3.42 MGP
UPC: 00698231021910
App/Model: GM 8.5|GM 8.625
Cover Bolt Quantity: 10
Differential Carrier Break: 2.73 Ratio and Higher
Differential Model: GM 8.5|GM 8.625
Gear Ratio: 3.42
Pinion Gear Tooth Quantity: 12
Pinion Shaft Diameter: 1.626 Inch
Pinion Spline Count: 30
Prop 65 Yes/No: No
Ring Gear Bolt Quantity: 10
Ring Gear Material: 8620 Steel
Ring Gear Outside Diameter: 8.5 Inch
Ring Gear Rotation: Standard
Ring Gear Tooth Quantity: 41
Taxonomy A: LD Differential
Taxonomy B: Ring and Pinion
Taxonomy C: Front|Rear
Taxonomy D: 3.42
For GM 8.5″/8.625″ (10 Bolt); Performance Ring and Pinion; 3.42 Ratio; Requires a 2.73 and Numerically Higher Ratio Carrier

Installation Instructions
Installation Instructions
Installation Instructions
Installation Instructions
Installation Instructions
Installation Instructions

Warranty Period: 2 Years or 100,000 Miles

Replaces:

• G2 Axle and Gear: 1-2021-342
• G2 Axle and Gear: 2-2021-342
• General Motors: 23114031
• American Axle & Manufacturing: 40019013
• American Axle & Manufacturing: 40053029
• Richmond Gear: 49-0278-1
• Motive Gear: GM10-342
• Motive Gear: GM10-342A
• Revolution Gear & Axle: GM10-342DC
• EXCEL from Richmond: GM85342

Applications:

• 1973-1975 Buick Apollo
• 1971-1973 Buick Centurion
• 1973-1977 Buick Century
• 1991-1996 Buick Commercial Chassis
• 1971-1990 Buick Electra
• 1971-1981 Buick Estate Wagon
• 1971-1985 Buick LeSabre
• 2004-2007 Buick Rainier
• 1973-1977 Buick Regal
• 1984-1987 Buick Regal
• 1977-1978 Buick Riviera
• 1991-1996 Buick Roadmaster
• 1970-1972 Buick Skylark
• 1975-1979 Buick Skylark
• 1987-1992 Cadillac Brougham
• 1977-1984 Cadillac DeVille
• 1999-2000 Cadillac Escalade
• 2002-2013 Cadillac Escalade
• 2003-2013 Cadillac Escalade ESV
• 2002-2013 Cadillac Escalade EXT
• 1977-1987 Cadillac Fleetwood
• 1993-1996 Cadillac Fleetwood
• 1976-1979 Cadillac Seville
• 2007-2013 Chevrolet Avalanche
• 2002-2006 Chevrolet Avalanche 1500
• 1970-1975 Chevrolet Bel Air
• 1970-1972 Chevrolet Biscayne
• 1987-2005 Chevrolet Blazer
• 1987-2005 Chevrolet Blazer
• 1970-1972 Chevrolet Brookwood
• 1977-1986 Chevrolet C10
• 1977-1986 Chevrolet C10 Suburban
• 1982-1986 Chevrolet C15
• 1988-1999 Chevrolet C1500
• 1992-1999 Chevrolet C1500 Suburban
• 1970-1981 Chevrolet Camaro
• 1970-1996 Chevrolet Caprice
• 1973-1973 Chevrolet Chevelle
• 2007-2013 Chevrolet Colorado
• 1973-1977 Chevrolet El Camino
• 1996-2013 Chevrolet Express 1500
• 1978-1995 Chevrolet G10
• 1978-1995 Chevrolet G20
• 1971-1985 Chevrolet Impala
• 1994-1996 Chevrolet Impala
• 1977-1986 Chevrolet K10
• 1977-1986 Chevrolet K10
• 1977-1986 Chevrolet K10 Suburban
• 1977-1986 Chevrolet K10 Suburban
• 1988-1999 Chevrolet K1500
• 1988-1999 Chevrolet K1500
• 1993-1999 Chevrolet K1500 Suburban
• 1993-1999 Chevrolet K1500 Suburban
• 1977-1986 Chevrolet K20
• 1977-1986 Chevrolet K20 Suburban
• 1988-1991 Chevrolet K2500
• 1988-1991 Chevrolet K2500
• 1975-1986 Chevrolet K5 Blazer
• 1975-1986 Chevrolet K5 Blazer
• 1973-1977 Chevrolet Malibu
• 1973-1977 Chevrolet Monte Carlo
• 1971-1979 Chevrolet Nova
• 1987-1987 Chevrolet R10
• 1987-1988 Chevrolet R10 Suburban
• 1989-1991 Chevrolet R1500 Suburban
• 1994-2004 Chevrolet S10
• 1983-1994 Chevrolet S10 Blazer
• 1991-1994 Chevrolet S10 Blazer
• 1999-2020 Chevrolet Silverado 1500
• 2007-2007 Chevrolet Silverado 1500 Classic
• 2001-2003 Chevrolet Silverado 1500 HD
• 2005-2006 Chevrolet Silverado 1500 HD
• 2007-2007 Chevrolet Silverado 1500 HD Classic
• 2003-2006 Chevrolet SSR
• 1995-2013 Chevrolet Suburban 1500
• 1995-2013 Chevrolet Tahoe
• 2002-2005 Chevrolet Trailblazer
• 2007-2009 Chevrolet Trailblazer
• 2002-2006 Chevrolet Trailblazer EXT
• 1987-1987 Chevrolet V10
• 1987-1987 Chevrolet V10
• 1987-1988 Chevrolet V10 Suburban
• 1987-1988 Chevrolet V10 Suburban
• 1989-1991 Chevrolet V1500 Suburban
• 1989-1991 Chevrolet V1500 Suburban
• 1987-1987 Chevrolet V20
• 1987-1988 Chevrolet V20 Suburban
• 1989-1991 Chevrolet V2500 Suburban
• 1979-1986 GMC C1500
• 1988-1999 GMC C1500
• 1979-1986 GMC C1500 Suburban
• 1992-1999 GMC C1500 Suburban
• 2004-2012 GMC Canyon
• 2002-2009 GMC Envoy
• 2002-2006 GMC Envoy XL
• 2004-2005 GMC Envoy XUV
• 1979-1995 GMC G1500
• 1979-1995 GMC G2500
• 1970-1991 GMC Jimmy
• 1980-2005 GMC Jimmy
• 1977-1978 GMC K15
• 1977-1978 GMC K15 Suburban
• 1979-1986 GMC K1500
• 1979-1986 GMC K1500
• 1988-1999 GMC K1500
• 1988-1999 GMC K1500
• 1979-1986 GMC K1500 Suburban
• 1979-1986 GMC K1500 Suburban
• 1992-1999 GMC K1500 Suburban
• 1992-1999 GMC K1500 Suburban
• 1977-1978 GMC K25
• 1977-1978 GMC K25 Suburban
• 1979-1986 GMC K2500
• 1979-1986 GMC K2500
• 1988-1991 GMC K2500
• 1988-1991 GMC K2500
• 1979-1986 GMC K2500 Suburban
• 1979-1986 GMC K2500 Suburban
• 1987-1987 GMC R1500
• 1987-1991 GMC R1500 Suburban
• 1996-2013 GMC Savana 1500
• 2007-2013 GMC Sierra
• 1999-2020 GMC Sierra 1500
• 2007-2007 GMC Sierra 1500 Classic
• 1994-2004 GMC Sonoma
• 1973-1977 GMC Sprint
• 1992-1993 GMC Typhoon
• 1987-1987 GMC V1500
• 1987-1987 GMC V1500
• 1987-1991 GMC V1500 Suburban
• 1987-1991 GMC V1500 Suburban
• 1987-1987 GMC V2500
• 1987-1991 GMC V2500 Suburban
• 1992-2013 GMC Yukon
• 2000-2013 GMC Yukon XL 1500
• 2006-2010 Hummer H3
• 2009-2010 Hummer H3T
• 2003-2008 Isuzu Ascender
• 1971-1971 Oldsmobile 442
• 1970-1984 Oldsmobile 98
• 1980-1992 Oldsmobile Custom Cruiser
• 1970-1977 Oldsmobile Cutlass
• 1985-1987 Oldsmobile Cutlass
• 1978-1984 Oldsmobile Cutlass Calais
• 1980-1983 Oldsmobile Cutlass Cruiser
• 1975-1980 Oldsmobile Cutlass Salon
• 1985-1987 Oldsmobile Cutlass Salon
• 1970-1987 Oldsmobile Cutlass Supreme
• 1971-1985 Oldsmobile Delta 88
• 1971-1972 Oldsmobile F85
• 1973-1979 Oldsmobile Omega
• 1970-1975 Oldsmobile Vista Cruiser
• 1971-1981 Pontiac Bonneville
• 1987-1989 Pontiac Bonneville
• 1971-1981 Pontiac Catalina
• 1971-1981 Pontiac Firebird
• 1973-1975 Pontiac Grand Am
• 1978-1980 Pontiac Grand Am
• 1975-1977 Pontiac Grand LeMans
• 1971-1977 Pontiac Grand Prix
• 1971-1975 Pontiac Grandville
• 1972-1973 Pontiac GTO
• 1971-1972 Pontiac Laurentian
• 1972-1977 Pontiac LeMans
• 1976-1986 Pontiac Parisienne
• 1977-1979 Pontiac Phoenix
• 1971-1977 Pontiac Ventura
• 2005-2009 Saab 9-7x