Chevy 20 Rear Axles


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    Some available Rear Axle options for the Chevy 20 are:

    Year: 1988 Chevy Chevy 20 Rear Axle

  • 4x2 exc. crew cab semi-floating 3.73 ratio (opt GT4)
  • 4x4 4.10 ratio (opt GT5)
  • 4x2 exc. crew cab full-floating 3.73 ratio (opt GT4)
  • 4x2 exc. crew cab semi-floating 4.10 ratio (opt GT5)
  • 4x2 exc. crew cab full-floating 4.10 ratio (opt GT5)
  • 4x2 exc. crew cab full-floating 4.56 ratio (opt HC4)
  • 4x4 3.23 ratio (opt GU5)
  • 4x2 exc. crew cab semi-floating 3.23 ratio (opt GU5)
  • 4x2 exc. crew cab semi-floating 4.56 ratio (opt HC4)
  • 4x4 3.73 ratio (opt GT4)
  • 4x2 crew cab 3.73 ratio (opt GT4)
  • 4x4 3.42 axle ratio (opt GU6)
  • 4x2 exc. crew cab full-floating 3.42 axle ratio (opt GU6)
  • 4x2 crew cab 4.10 ratio (opt GT5)
  • 4x2 exc. crew cab semi-floating 3.42 axle ratio (opt GU6)
  • 4x2 crew cab 4.56 ratio (opt HC4)
  • 4x2 exc. crew cab full-floating 3.21 ratio (opt HC8)
  • 4x2 crew cab 3.42 axle ratio (opt GU6)


  • Year: 1987 Chevy Chevy 20 Rear Axle

  • 4x2 exc. crew cab semi-floating 3.73 ratio (opt GT4)
  • 4x4 3.23 ratio (opt GU5)
  • 4x2 exc. crew cab semi-floating 4.56 ratio (opt HC4)
  • 4x2 crew cab 3.23 ratio (opt GU5)
  • 4x2 crew cab 4.56 ratio (opt HC4)
  • 4x2 exc. crew cab full-floating 4.56 ratio (opt HC4)
  • 4x2 exc. crew cab semi-floating 3.23 ratio (opt GU5)
  • 4x2 crew cab 3.73 ratio (opt GT4)
  • 4x4 3.42 axle ratio (opt GU6)
  • 4x2 exc. crew cab semi-floating 3.42 axle ratio (opt GU6)
  • 4x2 exc. crew cab full-floating 4.10 ratio (opt GT5)
  • 4x2 exc. crew cab full-floating 3.42 axle ratio (opt GU6)
  • 4x2 exc. crew cab full-floating 3.21 ratio (opt HC8)
  • 4x2 crew cab 4.10 ratio (opt GT5)
  • 4x4 4.10 ratio (opt GT5)
  • 4x2 exc. crew cab full-floating 3.73 ratio (opt GT4)
  • 4x2 crew cab 3.42 axle ratio (opt GU6)
  • 4x2 exc. crew cab semi-floating 4.10 ratio (opt GT5)
  • 4x4 3.73 ratio (opt GT4)


  • Year: 1986 Chevy Chevy 20 Rear Axle

  • 4x2 exc. crew cab semi-floating 3.23 ratio (opt GU5)
  • 4x4 3.73 ratio (opt GT4)
  • 4x2 exc. crew cab semi-floating 4.10 ratio (opt GT5)
  • 4x4 3.23 ratio (opt GU5)
  • 4x2 exc. crew cab semi-floating 3.42 axle ratio (opt GU6)
  • 4x2 crew cab 4.56 ratio (opt HC4)
  • 4x2 exc. crew cab semi-floating 4.56 ratio (opt HC4)
  • 4x2 exc. crew cab full-floating 3.42 axle ratio (opt GU6)
  • 4x2 crew cab 3.42 axle ratio (opt GU6)
  • 4x2 exc. crew cab full-floating 3.21 ratio (opt HC8)
  • 4x2 crew cab 4.10 ratio (opt GT5)
  • 4x4 3.42 axle ratio (opt GU6)
  • 4x2 exc. crew cab full-floating 3.73 ratio (opt GT4)
  • 4x2 crew cab 3.73 ratio (opt GT4)
  • 4x2 crew cab 3.23 ratio (opt GU5)
  • 4x4 4.10 ratio (opt GT5)
  • 4x2 exc. crew cab semi-floating 3.73 ratio (opt GT4)
  • 4x2 exc. crew cab full-floating 4.10 ratio (opt GT5)
  • 4x2 exc. crew cab full-floating 4.56 ratio (opt HC4)


  • Year: 1985 Chevy Chevy 20 Rear Axle

  • 4x2 exc. crew cab semi-floating 4.10 ratio (opt GT5)
  • 4x4 3.23 ratio (opt GU5)
  • 4x4 3.73 ratio (opt GT4)
  • 4x2 exc. crew cab semi-floating 3.73 ratio (opt GT4)
  • 4x2 exc. crew cab semi-floating 3.42 axle ratio (opt GU6)
  • 4x2 crew cab 3.23 ratio (opt GU5)
  • 4x4 4.10 ratio (opt GT5)
  • 4x2 exc. crew cab full-floating 4.56 ratio (opt HC4)
  • 4x2 crew cab 4.10 ratio (opt GT5)
  • 4x2 crew cab 4.56 ratio (opt HC4)
  • 4x2 exc. crew cab semi-floating 4.56 ratio (opt HC4)
  • 4x4 3.42 axle ratio (opt GU6)
  • 4x2 crew cab 3.42 axle ratio (opt GU6)
  • 4x2 exc. crew cab full-floating 3.21 ratio (opt HC8)
  • 4x2 crew cab 3.73 ratio (opt GT4)
  • 4x2 exc. crew cab full-floating 4.10 ratio (opt GT5)
  • 4x2 exc. crew cab full-floating 3.73 ratio (opt GT4)
  • 4x2 exc. crew cab semi-floating 3.23 ratio (opt GU5)
  • 4x2 exc. crew cab full-floating 3.42 axle ratio (opt GU6)


  • Year: 1984 Chevy Chevy 20 Rear Axle

  • 4x4 3.73 ratio (opt GT4)
  • 4x2 exc. crew cab semi-floating 3.42 axle ratio (opt GU6)
  • 4x2 exc. crew cab full-floating 3.73 ratio (opt GT4)
  • 4x2 exc. crew cab full-floating 4.10 ratio (opt GT5)
  • 4x4 3.23 ratio (opt GU5)
  • 4x2 exc. crew cab semi-floating 3.23 ratio (opt GU5)
  • 4x2 exc. crew cab semi-floating 4.10 ratio (opt GT5)
  • 4x2 exc. crew cab full-floating 3.42 axle ratio (opt GU6)
  • 4x2 exc. crew cab semi-floating 4.56 ratio (opt HC4)
  • 4x2 exc. crew cab semi-floating 3.73 ratio (opt GT4)
  • 4x2 crew cab 3.42 axle ratio (opt GU6)
  • 4x4 4.10 ratio (opt GT5)
  • 4x2 crew cab 4.10 ratio (opt GT5)
  • 4x4 3.42 axle ratio (opt GU6)
  • 4x2 crew cab 4.56 ratio (opt HC4)
  • 4x2 crew cab 3.23 ratio (opt GU5)
  • 4x2 crew cab 3.73 ratio (opt GT4)
  • 4x2 exc. crew cab full-floating 3.21 ratio (opt HC8)
  • 4x2 exc. crew cab full-floating 4.56 ratio (opt HC4)


  • Year: 1983 Chevy Chevy 20 Rear Axle

  • 4x2 exc. crew cab semi-floating 3.42 axle ratio (opt GU6)
  • 4x2 exc. crew cab semi-floating 4.56 ratio (opt HC4)
  • 4x2 exc. crew cab full-floating 3.21 ratio (opt HC8)
  • 4x2 exc. crew cab full-floating 3.42 axle ratio (opt GU6)
  • 4x2 crew cab 4.10 ratio (opt GT5)
  • 4x2 exc. crew cab semi-floating 4.10 ratio (opt GT5)
  • 4x2 crew cab 3.42 axle ratio (opt GU6)
  • 4x4 3.42 axle ratio (opt GU6)
  • 4x2 crew cab 4.56 ratio (opt HC4)
  • 4x4 3.23 ratio (opt GU5)
  • 4x2 exc. crew cab full-floating 3.73 ratio (opt GT4)
  • 4x2 exc. crew cab semi-floating 3.23 ratio (opt GU5)
  • 4x4 3.73 ratio (opt GT4)
  • 4x2 exc. crew cab full-floating 4.56 ratio (opt HC4)
  • 4x2 exc. crew cab full-floating 4.10 ratio (opt GT5)
  • 4x2 crew cab 3.23 ratio (opt GU5)
  • 4x4 4.10 ratio (opt GT5)
  • 4x2 exc. crew cab semi-floating 3.73 ratio (opt GT4)
  • 4x2 crew cab 3.73 ratio (opt GT4)


  • Year: 1982 Chevy Chevy 20 Rear Axle

  • 4x4 3.23 ratio (opt GU5)
  • 4x4 3.73 ratio (opt GT4)
  • 4x2 exc. crew cab full-floating 4.56 ratio (opt HC4)
  • 4x2 crew cab 3.42 axle ratio (opt GU6)
  • 4x2 exc. crew cab full-floating 3.73 ratio (opt GT4)
  • 4x2 exc. crew cab full-floating 4.10 ratio (opt GT5)
  • 4x2 crew cab 4.10 ratio (opt GT5)
  • 4x2 crew cab 3.73 ratio (opt GT4)
  • 4x2 exc. crew cab semi-floating 3.21 ratio (opt HC8)
  • 4x2 exc. crew cab full-floating 3.42 axle ratio (opt GU6)
  • 4x2 crew cab 4.56 ratio (opt HC4)
  • 4x2 exc. crew cab semi-floating 4.56 ratio (opt HC4)
  • 4x4 4.10 ratio (opt GT5)
  • 4x2 crew cab 3.23 ratio (opt GU5)
  • 4x2 exc. crew cab full-floating 3.21 ratio (opt HC8)
  • 4x2 exc. crew cab semi-floating 3.42 axle ratio (opt GU6)
  • 4x4 3.42 axle ratio (opt GU6)
  • 4x2 exc. crew cab semi-floating 3.73 ratio (opt GT4)
  • 4x2 exc. crew cab semi-floating 4.10 ratio (opt GT5)


  • Year: 1981 Chevy Chevy 20 Rear Axle

  • 4x2 exc. crew cab semi-floating 4.10 ratio (opt GT5)
  • 4x2 exc. crew cab semi-floating 3.73 ratio (opt GT4)
  • 4x2 exc. crew cab full-floating 4.10 ratio (opt GT5)
  • 4x2 exc. crew cab full-floating 3.73 ratio (opt GT4)
  • 4x2 crew cab 3.23 ratio (opt GU5)
  • 4x4 4.10 ratio (opt GT5)
  • 4x2 exc. crew cab semi-floating 4.56 ratio (opt HC4)
  • 4x2 crew cab 4.10 ratio (opt GT5)
  • 4x2 crew cab 3.73 ratio (opt GT4)
  • 4x2 exc. crew cab full-floating 3.21 ratio (opt HC8)
  • 4x2 exc. crew cab semi-floating 3.21 ratio (opt HC8)
  • 4x2 crew cab 4.56 ratio (opt HC4)
  • 4x2 exc. crew cab semi-floating 3.42 axle ratio (opt GU6)
  • 4x2 crew cab 3.21 ratio (opt HC8)
  • 4x2 exc. crew cab full-floating 3.42 axle ratio (opt GU6)
  • 4x4 3.42 axle ratio (opt GU6)
  • 4x4 3.21 ratio (opt HC8)
  • 4x4 3.23 ratio (opt GU5)
  • 4x2 crew cab 3.42 axle ratio (opt GU6)
  • 4x4 3.73 ratio (opt GT4)
  • 4x2 exc. crew cab full-floating 4.56 ratio (opt HC4)