3.73 Ratio Richmond - Street Gear Differential Ring and Pinion for 7.5 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: 49-0007-1

3.73 Ratio Richmond - Street Gear Differential Ring and Pinion for 7.5 in (10 Bolt)

Application notes:

  • For GM 7.5"/7.625" (10 Bolt), 7.6" IFS
  • 3.73 Ratio
  • Thick Gear
  • 3.08 Ratio Carrier and Lower
Where to buy

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Buying Guide

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Richmond Gear Buying Guide

Specifications

Cover Bolt Quantity 10
Differential Carrier Break 3.08 and Lower
Differential Case Design Type GM 7.5, GM 7.625, GM 7.6 IFS
Pinion Gear Tooth Quantity 11
Pinion Shaft Diameter 1.438 in
Pinion Spline Count 27
Ring & Pinion Gear Ratio 3.73
Ring Gear Bolt Quantity 10
Ring Gear Diameter 7.5 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
  • 1978 – 1981 Buick Century
  • 1991 – 1996 Buick Commercial Chassis
  • 1976 – 1985 Buick Electra
  • 1980 – 1983 Buick Estate Wagon
  • 1975 – 1985 Buick LeSabre
  • 1978 – 1987 Buick Regal
  • 1991 – 1996 Buick Roadmaster
  • 1977 – 1979 Buick Skylark
  • 1985 – 2005 Chevrolet Astro
  • 1995 – 2001 Chevrolet Blazer
  • 1982 – 2002 Chevrolet Camaro
  • 1977 – 1996 Chevrolet Caprice
  • 1977 – 1987 Chevrolet El Camino
  • 1977 – 1985 Chevrolet Impala
  • 1994 – 1996 Chevrolet Impala
  • 1973 – 1983 Chevrolet Malibu
  • 1978 – 1988 Chevrolet Monte Carlo
  • 1975 – 1980 Chevrolet Monza
  • 1977 – 1979 Chevrolet Nova
  • 1983 – 2004 Chevrolet S10
  • 1983 – 1994 Chevrolet S10 Blazer
  • 1988 – 1989 Chrysler Mercer
  • 2002 – 2005 GMC Envoy
  • 1992 – 2001 GMC Jimmy
  • 1982 – 1990 GMC S15
  • 1983 – 1991 GMC S15 Jimmy
  • 1985 – 2005 GMC Safari
  • 1991 – 2004 GMC Sonoma
  • 1991 GMC Syclone
  • 2006 – 2010 Hummer H3
  • 2009 – 2010 Hummer H3T
  • 1991 – 2002 Isuzu Rodeo
  • 1982 – 1984 Oldsmobile 98
  • 1991 – 1994 Oldsmobile Bravada
  • 1996 – 2004 Oldsmobile Bravada
  • 1978 – 1981 Oldsmobile Cutlass
  • 1980 – 1983 Oldsmobile Cutlass Cruiser
  • 1977 – 1985 Oldsmobile Delta 88
  • 1976 – 1979 Oldsmobile Omega
  • 1975 – 1986 Pontiac Bonneville
  • 1975 – 1981 Pontiac Catalina
  • 1977 – 1988 Pontiac Firebird
  • 1990 – 2002 Pontiac Firebird
  • 1978 – 1980 Pontiac Grand Am
  • 1978 – 1981 Pontiac Grand LeMans
  • 1978 – 1987 Pontiac Grand Prix
  • 1983 – 1986 Pontiac Parisienne