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