Differential Ring and Pinion (12 Bolt)

4857
147029
4858
4862
4863

Motive Gear stock performance ring and pinions are excellent replacements for OE. Experienced installers prefer our ring and pinions for easy setup, superior strength, quality, and our vast ratio selection. Motive Gear produces the industry's widest range of OEM replacement ring and pinions. Engineered to the highest standards, every Motive Gear product goes through rigid quality control processes in our in-house lab. In combination with Motive Gear's performance and axle divisions: Motive Gear Performance and TEN Factory, there simply isn't a better value in drivetrain components.

AM20-373 Application Notes

  • For AMC 20
  • 3.73 Ratio
  • Requires a 3.08 and Numerically Higher Ratio Carrier

Warranty

1 Year or 50,000 Miles

AM20-373 Specifications

App Model AMC 20
Cover Bolt Quantity 12
Differential Carrier Break 3.08 Ratio and Higher
Differential Case Design Type AMC 20
Gear Ratio 3.73
Pinion Gear Tooth Quantity 11
Pinion Shaft Diameter 1.625 (Inch)
Pinion Spline Count 28
Ring Gear Bolt Quantity 8
Ring Gear Material 8620 Steel
Ring Gear Outside Diameter 8.875 (Inch)
Ring Gear Rotation Standard
Ring Gear Tooth Quantity 41
Taxonomy A LD Differential, LD Differential, LD Differential
Taxonomy B Ring and Pinion, Ring and Pinion, Ring and Pinion
Taxonomy C Front, Rear, Front, Rear, Front, Rear
Taxonomy D 3.73, 3.73, 3.73
Where to buy

Vehicle Applications

  • 1992 – 2001 AM General Hummer
  • 1968 – 1970 American Motors AMX
  • 1978 – 1979 American Motors AMX
  • 1967 – 1974 American Motors Ambassador
  • 1967 – 1968 American Motors American
  • 1978 – 1979 American Motors Concord
  • 1972 – 1976 American Motors Gremlin
  • 1970 – 1977 American Motors Hornet
  • 1968 – 1974 American Motors Javelin
  • 1967 American Motors Marlin
  • 1971 – 1978 American Motors Matador
  • 1978 – 1979 American Motors Pacer
  • 1969 American Motors Rambler
  • 1967 – 1970 American Motors Rebel
  • 1979 American Motors Spirit
  • 2002 – 2004 Hummer H1
  • 2006 Hummer H1
  • 1976 – 1983 Jeep CJ5
  • 1976 – 1986 Jeep CJ7
  • 1979 – 1983 Jeep Cherokee
  • 1986 Jeep Comanche
  • 1984 – 1986 Jeep Grand Wagoneer
  • 1980 – 1986 Jeep J10
  • 1981 – 1985 Jeep Scrambler
  • 1979 – 1983 Jeep Wagoneer
  • 1972 – 1974 Pontiac Bristol
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