GM RPO Codes
|
RPO Code |
Description |
Ratio |
F16 |
Transaxle Final Drive |
2.53 |
F17 |
Transaxle Final Drive |
2.84 |
F18 |
Transaxle Final Drive |
2.65 |
F25 |
Transaxle Final Drive |
3.32 |
F29 |
Transaxle Final Drive |
2.82 |
F36 |
Axle Front |
2.19 |
F45 |
Axle Front |
2.93 |
F47 |
Axle Front |
2.73 |
F57 |
Axle Front |
3.15 |
F62 |
Transaxle Final Drive |
2.39 |
F67 |
Transaxle Final Drive |
3.19 |
F68 |
Transaxle Final Drive |
3.45 |
F75 |
Transaxle Final Drive |
3.18 |
F77 |
Transaxle Final Drive |
3.73 |
F79 |
Transaxle Final Drive |
2.97 |
F82 |
Transaxle Final Drive |
3.23 |
F83 |
Transaxle Final Drive |
3.05 |
F90 |
Axle Front |
2.73 |
FA0 |
Rear |
5.77 |
FA1 |
Rear 2 Speed |
4.88/6.94 |
FA2 |
Rear 2 Speed |
4.88/6.94 |
FH5 |
Transaxle Final Drive |
2.81 |
FH6 |
Axle Front |
3.64 |
FH7 |
Transaxle Final Drive |
4.12 |
FH8 |
Axle Front |
2.40 |
FH9 |
Transaxle Final Drive |
2.60 |
FJ1 |
Axle Front |
4.18 |
FJ2 |
Axle Front |
3.74 |
FJ3 |
Transaxle Final Drive |
3.35 |
FJ4 |
Axle Front |
4.53 |
FJ5 |
Axle Front |
4.19 |
FJ7 |
Axle Front |
4.56 |
FP0 |
Transaxle Final Drive |
2.55 |
FP1 |
Transaxle Final Drive |
2.72 |
FP2 |
Transaxle Final Drive |
3.58 |
FP3 |
Transaxle Final Drive |
2.73 |
FP4 |
Transaxle Final Drive |
2.69 |
FP5 |
Transaxle Final Drive |
2.95 |
FP6 |
Transaxle Final Drive |
3.54 |
FP7 |
Transaxle Final Drive |
3.73 |
FP8 |
Transaxle Final Drive |
3.54 |
FP9 |
Transaxle Final Drive |
3.54 |
FQ2 |
Transaxle Final Drive |
3.48 |
FQ3 |
Transaxle Final Drive |
2.86 |
FQ4 |
Transaxle Final Drive |
3.57 |
FQ6 |
Transaxle Final Drive |
4.12 |
FQ8 |
Transaxle Final Drive |
2.96 |
FQ9 |
Transaxle Final Drive |
3.21 |
FR2 |
Transaxle Final Drive |
2.93 |
FR3 |
Transaxle Final Drive |
3.69 |
FR6 |
Transaxle Final Drive |
3.84 |
FR7 |
Transaxle Final Drive |
3.95 |
FR8 |
Axle Front |
4.17 |
FR9 |
Transaxle Final Drive |
3.29 |
FV0 |
Transaxle Final Drive |
3.67 |
FV1 |
Transaxle Final Drive |
3.72 |
FV2 |
Transaxle Final Drive |
4.18 |
FV3 |
Transaxle Final Drive |
3.11 |
FV4 |
Transaxle Final Drive |
3.71 |
FV5 |
Transaxle Final Drive |
4.19 |
FV6 |
Transaxle Final Drive |
4.24 |
FV7 |
Transaxle Final Drive |
4.29 |
FV8 |
Transaxle Final Drive |
4.31 |
FV9 |
Transaxle Final Drive |
4.53 |
FVO |
Transaxle Final Drive |
3.67 |
FW2 |
Transaxle Final Drive |
3.06 |
FW3 |
Transaxle Final Drive |
4.02 |
FW4 |
Transaxle Final Drive |
3.89 |
FW5 |
Transaxle Final Drive |
4.10 |
FW6 |
Transaxle Final Drive |
3.42 |
FW7 |
Transaxle Final Drive |
3.83 |
FW8 |
Transaxle Final Drive |
4.28 |
FW9 |
Transaxle Final Drive |
3.43 |
FWS |
Transaxle Final Drive |
4.10 |
FX1 |
Transaxle Final Drive |
3.94 |
FX2 |
Transaxle Final Drive |
2.66 |
FX4 |
Transaxle Final Drive |
3.35 |
FX8 |
Transaxle Final Drive |
3.61 |
FY1 |
Transaxle Final Drive |
2.36 |
FY3 |
Transaxle Final Drive |
3.79 |
FY5 |
Transaxle Final Drive |
3.52 |
G11 |
Transaxle Final Drive |
2.56 |
G44 |
Axle Rear |
3.07 |
G72 |
Axle Rear |
2.14 |
G75 |
Axle Rear |
3.62 |
G76 |
Positraction Rear |
|
G80 |
Not Open Diff – Positraction / Limited Slip / Typ. Gov-Lock |
|
G81 |
Positraction Rear Axle |
|
G82 |
Axle Rear |
4.56 |
G84 |
Axle Rear |
4.10 |
G86 |
Axle Rear, Limited Slip |
|
G87 |
Ring Gear, 8.5″ |
|
G89 |
Ring Gear, 7.5″ |
|
G90 |
Rear |
3.15 |
G91 |
Special Highway Rear Axle |
3.08 |
G94 |
Axle Rear |
3.31 |
G96 |
Axle Rear |
3.55 |
G97 |
Axle Rear |
2.73 |
GH0 |
Axle Rear |
3.54 |
GH2 |
Axle Rear |
2.29 |
GH3 |
Axle Rear |
2.77 |
GH4 |
Axle Rear |
2.92 |
GH7 |
Axle Rear |
2.73 |
GJ1 |
Axle Rear |
5.38 |
GJ2 |
Axle Rear |
5.13 |
GK7 |
Axle Rear |
4.78 |
GK8 |
Axle Rear |
4.33 |
GK9 |
Axle Rear |
4.63 |
GL0 |
Axle Rear |
5.13 |
GL3 |
Axle Rear |
6.17 |
GM1 |
Axle Rear |
2.59 |
GM2 |
Axle Rear |
3.44 |
GM3 |
Axle Rear |
3.45 |
GM4 |
Axle Rear |
3.67 |
GM5 |
Axle Rear |
3.89 |
GM6 |
Axle Rear |
4.22 |
GM7 |
Axle Rear |
3.68 |
GM8 |
Axle Rear |
2.56 |
GN9 |
Axle Rear |
4.11 |
GS1 |
Axle Rear |
2.73 |
GS3 |
Axle Rear |
3.73 |
GS4 |
Axle Rear |
3.70 |
GS5 |
Axle Rear |
4.11 |
GS6 |
Axle Rear |
4.56 |
GS8 |
Axle Rear |
3.94 |
GT1 |
Axle Rear |
2.56 |
GT2 |
Axle Rear |
2.29 |
GT4 |
Axle Rear (Dup of 5X1) |
3.73 |
GT5 |
Axle Rear (Dup of GT8) |
4.10 |
GT7 |
Axle Rear |
3.33 |
GT8 |
Axle Rear (Dup of GT5) |
4.10 |
GU1 |
Axle Rear |
2.41 |
GU2 |
Axle Rear |
2.73 |
GU3 |
Axle Rear |
2.93 |
GU4 |
Axle Rear |
3.08 |
GU5 |
Axle Rear |
3.23 |
GU6 |
Axle Rear |
3.42 |
GU7 |
Axle Rear |
2.77 |
GU8 |
Axle Rear |
3.90 |
GU9 |
Axle Rear |
3.91 |
GV0 |
Axle Rear |
3.55 |
GV1 |
Axle Rear |
2.73 |
GV2 |
Axle Rear |
5.83 |
GV3 |
Axle Rear |
3.08 |
GV4 |
Axle Rear |
3.36 |
GV5 |
Axle Rear |
3.55 |
GV7 |
Axle Rear |
4.11 |
GV8 |
Axle Rear |
2.72 |
GV9 |
Axle Rear |
4.25 |
GW2 |
Axle Rear |
2.56 |
GW3 |
Axle Rear |
2.56 |
GW4 |
Axle Rear |
3.31 |
GW5 |
Axle Rear |
2.73 |
GW6 |
Axle Rear |
3.27 |
GW8 |
Axle Rear |
4.10 |
GW9 |
Axle Rear (Dup of GU3) |
2.93 |
GX1 |
Axle Rear |
3.70 |
GX2 |
Axle Rear |
3.07 |
GX3 |
Transaxle Final Drive |
3.33 |
GX4 |
Axle Rear |
3.75 |
GX5 |
Axle Rear |
4.09 |
GX6 |
Axle Rear |
3.53 |
GX8 |
Transaxle Final Drive |
3.74 |
GY2 |
Axle Rear |
3.31 |
GY3 |
Transaxle Final Drive |
4.29 |
GY4 |
Axle Rear |
4.53 |
GY5 |
Axle Front |
3.65 |
GY7 |
Transaxle Final Drive |
4.18 |
GY9 |
Axle Rear |
4.31 |
GYS |
Transaxle Final Drive |
3.65 |
H01 |
Axle Rear |
3.07 |
H04 |
Axle Rear, Single Speed |
4.11 |
H05 |
Axle Rear |
3.73 |
H12 |
Axle Rear, 21000 Lbs, Eaton 21065S, Single Speed |
|
H42 |
Axle Rear |
6.17 |
H43 |
Axle Rear |
5.43 |
HA3 |
Axle Rear, Single Speed |
5.29 |
HC4 |
Axle Rear |
4.56 |
HC7 |
Axle Rear, 7500 Lbs, Single Speed |
2.38 |
HC8 |
Axle Rear, Single Speed, Truck |
3.21 |
HC9 |
Axle Rear |
5.13 |
HE3 |
Axle Rear, 3500 Lbs, Single Speed |
3.07 |
HE4 |
Axle Rear |
3.40 |
HF7 |
Axle Rear, 10000 Lbs, Dana 70, Single |
4.56 |
HF8 |
Axle Rear |
4.88 |
HJ1 |
Axle Rear |
4.55 |
HJ2 |
Axle Rear |
5.86 |
HJ3 |
Axle Rear |
4.75 |
HJ4 |
Axle Rear |
6.50 |
HJ5 |
Axle Rear |
5.57 |
HJ6 |
Axle Rear |
4.78 |
HJ7 |
Axle Rear |
4.88 |
HK1 |
Axle Rear |
2.87 |
HK3 |
Axle Rear |
6.14 |
HK9 |
Axle Rear 10000 Lbs, Single Spd |
5.86 |
HO4 |
Axle Rear |
4.11 |