5.13 Ratio Richmond - Street Gear Differential Ring and Pinion for 8.5 in (10 Bolt)

Richmond Gear ring and pinions are perfect for any vehicle where performance and durability matters. Made from first-run steel, never recycled material, Richmond ring and pinions handle the extreme torque from high horsepower engines. Extensive engineering, computer controlled heat treatment, superior strength, quality and the widest selection of racing gear ratios available, make Richmond Gear the clear winner! Winners Run Richmond!

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Part number: 69-0171-1

5.13 Ratio Richmond - Street Gear Differential Ring and Pinion for 8.5 in (10 Bolt)

Application notes:

  • For GM 8.5"/8.625" (10 Bolt)
  • 5.13 Ratio
  • 2.73 Ratio Carrier and Higher
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Buying Guide

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Richmond Gear Buying Guide

Specifications

Cover Bolt Quantity 10
Differential Carrier Break 2.73 and Higher
Differential Case Design Type GM 8.5, GM 8.625
Pinion Gear Tooth Quantity 8
Pinion Shaft Diameter 1.626 in
Pinion Spline Count 30
Ring & Pinion Gear Ratio 5.13
Ring Gear Bolt Quantity 10
Ring Gear Diameter 8.5 in
Ring Gear Material 8620 Steel
Ring Gear Rotation Standard
Ring Gear Tooth Quantity 41
Title Differential Ring and Pinion
Warranty Time 2 Years or 100,000 Miles

Vehicle 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
  • 1991 – 1992 Cadillac Brougham
  • 1999 – 2000 Cadillac Escalade
  • 2002 – 2015 Cadillac Escalade
  • 2003 – 2015 Cadillac Escalade ESV
  • 2002 – 2013 Cadillac Escalade EXT
  • 1976 – 1979 Cadillac Seville
  • 2002 – 2006 Chevrolet Avalanche 1500
  • 2007 – 2013 Chevrolet Avalanche
  • 1970 – 1975 Chevrolet Bel Air
  • 1964 – 1972 Chevrolet Biscayne
  • 1987 – 2005 Chevrolet Blazer
  • 1970 – 1972 Chevrolet Brookwood
  • 1977 – 1986 Chevrolet C10
  • 1977 – 1986 Chevrolet C10 Suburban
  • 1988 – 1999 Chevrolet C1500
  • 1992 – 1999 Chevrolet C1500 Suburban
  • 1970 – 1981 Chevrolet Camaro
  • 1968 – 1996 Chevrolet Caprice
  • 1973 Chevrolet Chevelle
  • 2007 – 2012 Chevrolet Colorado
  • 1973 – 1977 Chevrolet El Camino
  • 1996 – 2014 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 Suburban
  • 1988 – 1999 Chevrolet K1500
  • 1993 – 1999 Chevrolet K1500 Suburban
  • 1977 – 1986 Chevrolet K20
  • 1977 – 1986 Chevrolet K20 Suburban
  • 1988 – 1991 Chevrolet K2500
  • 1975 – 1986 Chevrolet K5 Blazer
  • 1973 – 1977 Chevrolet Malibu
  • 1973 – 1977 Chevrolet Monte Carlo
  • 1971 – 1979 Chevrolet Nova
  • 1987 Chevrolet R10
  • 1987 – 1988 Chevrolet R10 Suburban
  • 1989 – 1991 Chevrolet R1500 Suburban
  • 1994 – 2004 Chevrolet S10
  • 1983 – 1994 Chevrolet S10 Blazer
  • 2003 – 2006 Chevrolet SSR
  • 1999 – 2014 Chevrolet Silverado 1500
  • 2007 Chevrolet Silverado 1500 Classic
  • 2001 – 2003 Chevrolet Silverado 1500 HD
  • 2005 – 2006 Chevrolet Silverado 1500 HD
  • 2007 Chevrolet Silverado 1500 HD Classic
  • 2000 – 2014 Chevrolet Suburban 1500
  • 2015 Chevrolet Suburban
  • 2000 – 2013 Chevrolet Suburban 2500
  • 1995 – 2015 Chevrolet Tahoe
  • 2002 – 2005 Chevrolet Trailblazer
  • 2007 – 2009 Chevrolet Trailblazer
  • 2002 – 2006 Chevrolet Trailblazer EXT
  • 1987 Chevrolet V10
  • 1987 – 1988 Chevrolet V10 Suburban
  • 1989 – 1991 Chevrolet V1500 Suburban
  • 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
  • 1994 – 2001 GMC Jimmy
  • 1977 – 1978 GMC K15
  • 1977 – 1978 GMC K15 Suburban
  • 1979 – 1986 GMC K1500
  • 1988 – 1999 GMC K1500
  • 1979 – 1986 GMC K1500 Suburban
  • 1992 – 1999 GMC K1500 Suburban
  • 1977 – 1978 GMC K25
  • 1977 – 1978 GMC K25 Suburban
  • 1979 – 1986 GMC K2500
  • 1988 – 1991 GMC K2500
  • 1979 – 1986 GMC K2500 Suburban
  • 1987 GMC R1500
  • 1987 – 1991 GMC R1500 Suburban
  • 1996 – 2014 GMC Savana 1500
  • 1999 – 2014 GMC Sierra 1500
  • 2007 GMC Sierra 1500 Classic
  • 1994 – 2004 GMC Sonoma
  • 1973 – 1977 GMC Sprint
  • 1992 – 1993 GMC Typhoon
  • 1987 GMC V1500
  • 1987 – 1991 GMC V1500 Suburban
  • 1987 GMC V2500
  • 1987 – 1991 GMC V2500 Suburban
  • 1992 – 2016 GMC Yukon
  • 2000 – 2014 GMC Yukon XL 1500
  • 2015 – 2016 GMC Yukon XL
  • 2006 – 2010 Hummer H3
  • 2009 – 2010 Hummer H3T
  • 2003 – 2008 Isuzu Ascender
  • 1971 Oldsmobile 442
  • 1970 – 1984 Oldsmobile 98
  • 1980 – 1992 Oldsmobile Custom Cruiser
  • 1970 – 1977 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
  • 1975 – 1979 Plymouth Poseidon
  • 1971 – 1981 Pontiac Bonneville
  • 1987 – 1989 Pontiac Bonneville
  • 1971 – 1981 Pontiac Catalina
  • 1971 – 1981 Pontiac Firebird
  • 1972 – 1973 Pontiac GTO
  • 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 – 1977 Pontiac LeMans
  • 1983 – 1986 Pontiac Parisienne
  • 1977 – 1979 Pontiac Phoenix
  • 1971 – 1977 Pontiac Ventura
  • 2005 – 2009 Saab 9-7x