General Motors Corporation Drive Axle Gear Ratios

Official GM Web Site http://www.gm.com

General Motors Production Options.

The following Regular Production Option (RPO) codes identify the rear axle and transaxle overall final drive gear Ratios. These codes can be located on the RPO sticker in the glove box or in the trunk on most GM vehicles.  Axle codes typically begin with the letter D, F, G, H, or Numerical.

These codes are arranged in alphanumeric order. 

D-codes - F-codes - G-codes - H-codes - Numerical Codes (MD Trucks) - Imported GM Vehicles

RPO Ratio Axle Type
D70 2.77 Transaxle
D93 2.95 Transaxle
D92 3.08 Transaxle

 

RPO Ratio Axle Type
F07 3.39 Transaxle
F09 4.16 Transaxle
F16 2.53 Front
F17 2.84 Transaxle
F18 2.65 Front
F19 3.82 Transaxle
F25 3.32 Front
F29 2.41 Front
F29 2.82 Transaxle (2008)
F36 2.19 Front
F45 2.93 Front
F47 2.73 Front
F53 3.10 Transaxle
F57 3.15 Front
F61 4.82 Transaxle
F62 2.39 Transaxle
F63 5.60 Transaxle
F64 5.10 Transaxle
F65 2.40 Transaxle
F67 3.19 Front
F67 2.70 Transaxle 2006-2008
G67 2.70 Transaxle
F68 3.45 Transaxle
F69 3.24 Transaxle
F71 2.44 Transaxle
F72 5.42 Transaxle
F73 2.23 Transaxle
F74 4.87 Transaxle
F75 3.18 Transaxle
F76 4.41 Transaxle
F77 4.11 Transaxle
F78 4.97 Transaxle
F79 2.97 Transaxle
F80 4.09 Transaxle
F81 4.71 Transaxle
F82 3.23 Transaxle
F83 3.05 Transaxle
F84 3.09 Transaxle
F90 2.73 Front
FA0 5.77 Rear
FA1 4.88/6.94 Rear 2-speed
FA2 4.88/6.94 Rear 2-speed
FH1 3.94 Front
FH2 4.29 Front
FH3 3.03 Front
FH5 2.81 Transaxle
FH6 3.64 Front
FH7 4.12 Transaxle
FH8 2.40 Front
FH9 2.60 Transaxle
FJ1 4.18 Front
FJ2 3.74 Front
FJ3 3.35 Transaxle
FJ4 4.53 Front
FJ5 4.19 Front
FJ6 4.82 Front
FJ7 4.56 Front
FJA 2.06 Transaxle
FKA 3.72 Front
FKB 3.95 Front
FKC 2.65 Front
FKD 3.75 Front
FKE 4.11 Front
FL4 4.12 Front
FM9 3.20 Transaxle
FP0 3.62 Front
FP0 2.55 Transaxle
FP1 2.26 Front
FP1 2.72 Transaxle
FP2 3.58 Transaxle
FP3 2.73 Transaxle
FP4 2.69 Transaxle
FP5 2.95 Transaxle
FP6 4.48 Transaxle
FP7 3.73 Transaxle
FP8 3.29 Front
FP8 3.54 Transaxle
FP9 3.55 Transaxle
FQ2 3.48 Transaxle
FQ3 2.86 Transaxle
FQ4 3.57 Transaxle
FQ5 3.68 Transaxle
FQ6 4.12 Transaxle
FQ7 4.05 Transaxle
FQ8 2.96 Transaxle
FQ7 4.05 Transaxle
FQ8 2.96 Transaxle
FQ9 3.21 Transaxle
FR2 2.93 Transaxle
FR3 3.69 Transaxle
FR4 2.48 Transaxle
FR6 3.84 Transaxle
FR7 3.95 Transaxle
FR8 4.17 Transaxle
FR9 3.29 Transaxle
FR9 3.05 Transaxle 2007
FRA 3.97 Transaxle
FRB 3.56 Transaxle
FRC 3.96 Transaxle
FS6 4.06 Transaxle
FT9 2.50 Transaxle
FV0 3.67 Transaxle
FV1 3.72 Transaxle
FV2 4.18 Transaxle
FV3 3.11 Transaxle
FV4 3.71 Transaxle
FV5 4.19 Transaxle
FV6 4.24 Transaxle
FV7 4.29 Transaxle
FV8 4.31 Transaxle
FV9 4.53 Transaxle
FW0 3.60 Transaxle
FW2 3.06 Transaxle
FW3 2.33 Front 1982 - 1984
FW3 4.02 Transaxle
FW4 3.36 Front
FW4 3.89 Transaxle
FW5 4.10 Transaxle
FW6 2.14 Front
FW6 3.42 Transaxle (2007-2008)
FW7 3.83 Transaxle
FW8 1.99 Front
FW8 4.28 Transaxle
FW9 3.43 Transaxle
FWL 4.44 Transaxle
FX0 3.92 Transaxle
FX1 3.94 Transaxle
FX2 2.66 Front 1984-1985
FX2 3.91 Front 1995-2008
FX4 3.35 Transaxle
FX5 4.45 Transaxle
FX6 3.87 Transaxle
FX7 2.80 Transaxle
FX8 3.61 Transaxle
FX9 4.39 Transaxle
FXB 3.65 Transaxle
FXC 3.49 Transaxle
FXD 3.62 Transaxle
FXJ 2.64 Transaxle
FXK 2.89 Transaxle
FY0 4.98 Transaxle
FY1 2.36 Front
FY1 3.63 Transaxle 2006-2008
FY2 3.74 Transaxle
FY3 3.79 Transaxle
FY4 3.41 Transaxle
FY5 3.52 Transaxle
FY6 5.08 Transaxle
FY7 5.54 Transaxle
FY8 4.30 Transaxle
FY9 3.77 Transaxle
FZ1 4.35 Transaxle
FZ2 4.36 Transaxle
FZ4 2.67 Transaxle
FZ8 3.13 Transaxle
FZ9 5.90 Transaxle

RPO Ratio Axle Type
G44 3.07 Rear
G72 2.14 Rear
G75 3.62 Rear
G82 4.33 Transaxle
G83 4.47 Transaxle
G84 3.70 Rear
G89 4.13 Transaxle
G90 3.15 Rear
G91 6.83 Rear
GH0 3.54 Rear
GH1 3.55 Rear
GH2 2.29 Rear
GH3 2.77 Rear
GH4 2.28 Rear
GH7 2.73 Rear
GJ1 5.38 Rear
GJ2 5.13 Rear
GK7 4.78 Rear
GK8 4.33 Rear
GK9 4.63 Rear
GL0 5.13 Rear
GL3 6.17 Rear
GM0 3.58 Rear
GM1 2.59 Rear
GM2 3.44 Rear
GM3 3.45 Rear
GM4 3.67 Rear
GM5 3.89 Rear
GM6 4.22 Rear
GM7 2.39 Rear
GM8 2.56 Rear
GM9 3.63 Rear
GN9 4.11 Rear
GS0 6.43 Rear
GS4 2.70 Rear
GS8 3.94 Transaxle
GS9 3.46 Rear
GT1 5.63 Rear
GT2 4.77 Rear
GT3 4.55 Rear
GT4 3.73 Rear
GT5 4.10 Rear
GT6 4.19 Transaxle
GT7 3.33 Rear
GT8 4.10 Rear
GT9 2.87 Rear
GU1 2.41 Rear
GU2 2.73 Rear
GU3 2.93 Rear
GU4 3.08 Rear
GU5 3.23 Rear
GU6 3.42 Rear
GU7 2.77 Rear
GU8 3.90 Rear
GU9 3.91 Rear
GV0 3.55 Rear
GV1 3.85 Rear
GV2 5.83 Rear
GV3 3.57 Rear
GV4 3.36 Rear
GV5 3.82 Rear
GV7 4.05 Rear
GV8 2.72 Rear
GV9 4.25 Rear
GW1 3.91 Rear
GW4 3.31 Rear
GW5 3.16 Transaxle
GW6 3.27 Rear
GW8 2.92 Rear
GW9 2.93 Rear
GX1 5.43 Rear
GX3 3.33 Transaxle
GX4 3.75 Rear
GX5 4.09 Rear
GX6 3.53 Rear
GX8 3.74 Transaxle
GY1 3.85 Transaxle
GY2 4.30 Rear
GY3 4.29 Transaxle
GY4 4.53 Rear
GY5 3.75 Front
GY7 4.18 Transaxle
GY9 4.31 Rear

RPO Ratio Axle Type
H04 4.11 Rear
H06 4.63 Rear
H22 6.17 Rear
H23 5.43 Rear
HA3 5.29 Rear
HA5 4.63 Rear
HC1 4.62 Rear
HC2 2.76 Rear
HC3 5.12 Rear
HC4 4.56 Rear
HC7 5.13 Rear
HC8 3.21 Rear
HC9 5.13 Rear
HD1 5.83 Rear
HE3 3.07 Rear
HE4 3.40 Rear
HF7 4.56 Rear
HF8 4.88 Rear
HF9 4.89 Rear
HJ1 4.55 Rear
HJ2 5.86 Rear
HJ3 4.75 Rear
HJ4 6.50 Rear
HJ5 5.57 Rear
HJ6 4.78 Rear
HJ7 4.88 Rear
HK1 2.87 Rear
HK3 6.14 Rear
HK9 5.86 Rear
HO4 4.11 Rear
HO6 4.63 Rear
 
RPO Ratio Axle Type
0 5.43 MD
1 5.57 MD
4 6.14 MD
5 6.17 MD
6 5.25 MD
7 6.50 MD
9 6.67 MD
12 7.17 MD
28 6.57 MD
29 3.55 MD
001 3.70 MD
002 4.11 MD
003 4.33 MD
004 4.78 MD
005 4.56 MD
006 4.63 MD
007 3.07 MD
008 4.88 MD
009 5.29 MD
010 5.43 MD
011 5.57 MD
012 5.83 MD
013 3.73 MD
014 6.14 MD
015 6.17 MD
016 5.25 MD
017 6.50 MD
018 6.65 MD
019 6.67 MD
020 5.63 MD
021 6.83 MD
022 7.17 MD
024 3.31 MD
032 6.29 MD
034 3.54 MD
035 3.38 MD
036 4.44 MD
037 9.77 MD
038 6.57 MD
039 3.55 MD
041 7.39 MD
045 5.91 MD
049 5.11 MD
051 6.43 MD
053 3.58 MD
056 3.23 MD
057 3.36 MD
058 5.13 MD
059 5.14 MD
053 3.58 MD
066 4.10 MD
069 3.90 MD
070 5.38 MD
071 3.91 MD
073 5.04 MD
075 5.86 MD
086 9.08 MD
090 3.08 MD
092 4.30 MD
9K4 4.63 Rear

The following year import vehicles did not have or use RPO codes, later model year vehicles did.  Refer to the tables above.

Vehicle Info Ratio Axle Type
2005-2006 Chevrolet Aveo, Pontiac Wave 1.4L SOHC w / D-16  5-Speed Manual Trans 4.176 Transaxle
2005-2006 Chevrolet Aveo, Pontiac Wave 1.4L DOHC w / D-16  5-Speed Manual Trans 3.944 Transaxle
2005-2006 Chevrolet Aveo, Pontiac Wave 1.5L w / D-16  5-Speed Manual Trans 3.722 Transaxle
2005-2006 Chevrolet Aveo, Pontiac Wave w / Y4M 5-Speed Manual Trans 4.105 Transaxle
2005-2006 Chevrolet Aveo, Pontiac Wave SOHC Engine w / Aisin 81-40LE 4-Speed Auto Trans 3.750 Transaxle
2005-2006 Chevrolet Aveo, Pontiac Wave DOHC Engine w / Aisin 81-40LE 4-Speed Auto Trans 4.052 Transaxle
2007 Chevrolet Aveo, Pontiac Wave 1.5L SOHC  (Trans Code SX) 3.722 Transaxle
2007 Chevrolet Aveo, Pontiac Wave 1.4L DOHC (Trans Code SY) 3.722 Transaxle
2007 Chevrolet Aveo, Pontiac Wave 1.4L DOHC (Trans Code W2) 4.176 Transaxle
2005-2007 Chevrolet Epica w / D-20 5-Speed Manual Trans 4.176 Transaxle
2005-2007 Chevrolet Epica w / ZF 4HP-16 4-Speed Auto Trans 3.945 Transaxle
2005-2006 Chevrolet Optra w / D-20 5-Speed Manual Trans 3.550 Transaxle
2005-2006 Chevrolet Optra w / Aisin 81-40LE 4-Speed Auto Trans 3.750 Transaxle
2005-2006 Chevrolet Optra w / ZF 4HP-16 4-Speed Auto Trans 3.945 Transaxle
2007 Chevrolet Optra 1.6L DOHC  (Trans Code CR) 3.722 Transaxle
2007 Chevrolet Optra 1.4L DOHC  (Trans Code SY) 3.722 Transaxle
2007 Chevrolet Optra 1.8L DOHC  (Trans Code CV) 3.722 Transaxle
2007 Chevrolet Optra 2.0L DOHC  (Trans Code FN) 3.550 Transaxle
2007 Chevrolet Optra 2.0L DOHC 3.550 Transaxle
2007 Chevrolet Optra w / ZF 4HP-16 4-Speed Auto Trans (Trans Code AW) 3.945 Transaxle
2007 Chevrolet Optra w / ZF 4HP-16 4-Speed Auto Trans (Trans Code JW) 3.945 Transaxle
2007 Chevrolet Optra w / Aisin 81-40LE 4-Speed Auto Trans 3.750 Transaxle
2007 Chevrolet Spark, Pontiac Matiz (Trans Code Y4A) Europe 4.444 Transaxle
2007 Chevrolet Spark, Pontiac Matiz (Trans Code Y4A) except Europe 4.105 Transaxle
2007 Chevrolet Spark, Pontiac Matiz (Trans Code Y4M) Europe 4.444 Transaxle
2007 Chevrolet Spark, Pontiac Matiz (Trans Code Y4M) except Europe 4.105 Transaxle
2007 Chevrolet Spark, Pontiac Matiz (Jatco JF405E Automatic Transmission) 3.579 Transaxle
2005-2007 Chevrolet Vivant w / D-16  5-Speed Manual Trans 3.944 Transaxle
2005-2007 Chevrolet Vivant 2.0L w / D-20  5-Speed Manual Trans 3.722 Transaxle
2005-2007 Chevrolet Vivant w / ZF 4HP-16 4-Speed Auto Trans 3.945 Transaxle

Source: GM Production Options, GM Service Manuals 1976 - 2009.

This page was last modified Thursday, March 05, 2009 09:00:23 PM

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