CORVETTE REAR AXLE CODES

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All the data entered here is from GM Parts Manuals.


YEAR

DESCRIPTION

CODE

63

3-Spd 3:36 Ratio

CA

63

Positraction 3:08 Ratio

CJ

63

Positraction 3:36 Ratio

CB

63

Positraction 3:55 Ratio

CC

63

Positraction 3:70 Ratio

CD

63

Positraction 4:11 Ratio

CE

63

Positraction 4:56 Ratio

CF

63

4-Speed 3:08 Ratio

CZ

63

4-Speed 3:70 Ratio

CX

64

3-Spd 3:36 Ratio

CA

64

Positraction 3:08 Ratio

CJ

64

Positraction 3:36 Ratio

CB

64

Positraction 3:55 Ratio

CC

64

Positraction 3:70 Ratio

CD

64

Positraction 4:11 Ratio

CE

64

Positraction 4:56 Ratio

CF

64

4-Speed 3:08 Ratio

CZ

64

4-Speed 3:70 Ratio

CX

65

3:36 Ratio

AK

65

Positraction 3:08 Ratio

AL

65

Positraction 3:36 Ratio

AM

65

Positraction 3:55 Ratio

AN

65

Positraction 3:70 Ratio

AO

65

Positraction 4:11 Ratio

AP

65

Positraction 4:56 Ratio

AQ

65

3:08 Ratio

AR

65

4-Speed 3:70 Ratio

AS

65

396 - Positraction 3:08 Ratio

AT

65

396 - Positraction 3:36 Ratio

AU

65

396 - Positraction 3:55 Ratio

AZ

65

Positraction 3:70 Ratio

FA

65

396 - Positraction 4:11 Ratio

FB

65

396 - Positraction 4:56 Ratio

FC

66

3:36 Ratio

AK

66

Positraction 3:08 Ratio

AL

66

Positraction 3:36 Ratio

AM

66

Positraction 3:55 Ratio

AN

66

Positraction 3:70 Ratio

AO

66

Positraction 4:11 Ratio

AP

66

Positraction 3:08 Ratio

AR

66

4-Speed 3:70 Ratio

AS

66

396 - Positraction 3:08 Ratio

AT

66

396 - Positraction 3:36 Ratio

AU

66

396 - Positraction 3:55 Ratio

AZ

66

396 - Positraction 3:70 Ratio

FA

66

396 - Positraction 4:11 Ratio

FB

66

396 - Positraction 4:56 Ratio

FC

67

3:36 Ratio

AK

67

Positraction 3:08 Ratio

AL

67

Positraction 3:36 Ratio

AM

67

Positraction 3:55 Ratio

AN

67

Positraction 3:70 Ratio

AO

67

Positraction 4:11 Ratio

AP

67

4-Speed 3:70 Ratio

AS

67

427 - Positraction 3:08 Ratio

AT

67

427 - Positraction 3:36 Ratio

AU

67

427 - Positraction 3:55 Ratio

AZ

67

427 - Positraction 3:70 Ratio

FA

67

427 - Positraction 4:11 Ratio

FB

67

Positraction 4:56 Ratio

FC

68

3:36 Ratio

AK

68

Positraction 3:08 Ratio

AL

68

Positraction 3:36 Ratio

AM

68

Positraction 3:55 Ratio

AN

68

Positraction 3:70 Ratio

AO

68

Positraction 4:11 Ratio

AP

68

3:70 Ratio

AS

68

HD - Positraction 3:08 Ratio

AT

68

HD - Positraction 3:36 Ratio

AU

68

Positraction 3:08 Ratio

AV

68

HD - Positraction 3:08 Ratio

AW

69

3:36 Ratio

AK

69

Positraction 3:08 Ratio

AL

69

Positraction 3:36 Ratio

AM

69

Positraction 3:55 Ratio

AN

69

Positraction 3:70 Ratio

AO

69

Positraction 4:11 Ratio

AP

69

3:70 Ratio

AS

69

HD - Positraction 3:08 Ratio

AT

69

HD - Positraction 3:36 Ratio

AU

69

Positraction 3:08 Ratio

AV

69

HD - Positraction 3:08 Ratio

AW

69

HD - Positraction 2:73 Ratio

AY

69

HD - Positraction 3:55 Ratio

AZ

69

HD - Positraction 3:70 Ratio

FA

69

HD - Positraction 4:11 Ratio

FB

69

Positraction 4:56 Ratio

FC

70

3:36 Ratio

CAK

70

Positraction 3:08 Ratio

CAL

70

Positraction 3:36 Ratio

CAM

70

Positraction 3:55 Ratio

CAN

70

350 Hi-Perf & 4-Spd Close Ratio - Positraction 3:70 Ratio

CAO

70

Positraction 4:11 Ratio

CAP

70

350 Hi-Perf & 4-Spd Close Ratio - Positraction 3:70 Ratio

CAS

70

Positraction 3:08 Ratio

CAT

70

Positraction 3:36 Ratio

CAU

70

Positraction 3:08 Ratio

CAV

70

4-Spd Automatic - Positraction 3:08 Ratio

CAW

70

Positraction 2:73 Ratio

CAY

70

4-Spd Automatic - Positraction 3:36 Ratio

CAX

70

Positraction 3:55 Ratio

CAZ

70

Positraction 3:70 Ratio

CFA

70

Positraction 4:11 Ratio

CFB

70

Positraction 4:56 Ratio

CFC

70

Positraction 3:36 Ratio

CLR

71

Positraction 3:55 Ratio

AA

71

Positraction 3:08 Ratio

AW

71

Positraction 3:36 Ratio

AX

71

Positraction 3:70 Ratio

AB

71

Positraction 4:11 Ratio

AC

71

Positraction 3:36 Ratio

LR

71

Positraction 4:56 Ratio

AD

72-75

Positraction 3:36 Ratio

AX

72-75

Positraction 3:36 Ratio

LR

72-75

Positraction 4:11 Ratio

AC

72-75

Positraction 3:70 Ratio

AB

72-75

Positraction 3:55 Ratio

AA

72-75

Positraction 3:08 Ratio

AW

76-77

Positraction 3:08 Ratio

OA

76-77

Positraction 3:36 Ratio

LR-OD

76-77

Positraction 3:55 Ratio

OB

76-77

Positraction 3:70 Ratio

OC

78

Positraction 3:08 Ratio

OK

78

Positraction 3:36 Ratio

OM

78

Positraction 3:55 Ratio

OH

78

Positraction 3:70 Ratio

OJ

79

Positraction 3:36 Ratio

OM

79

Positraction 3:55 Ratio

OH

79

Positraction 3:70 Ratio

OJ

80

Positraction 3:07 Ratio

DANA

81

Automatic Transmission - Positraction 2:87 Ratio

OJ

81

Manual Transmission - Positraction 2:72 Ratio

OK

82

Positraction 2:87 Ratio

DANA