Visit The Dirt Forum for More Information

Author Topic:   GM RPO codes for gears
dasher31
Dirt Full Roller

Total posts: 32
posted November 11, 2004 03:45 PM  
I know many of you will be hitting the auto s**** yards in search for morsels for next years race cars so I would like to share this chart that I have that shows what rear end gears a GM vehicle has by looking up the RPO codes found on the truck lid/glove box. It may save a lot of time rather than pulling diff covers off 804 vehicles before finding your target gear set.

RPO/Ratio Axle/Type

G44 3.07 Rear
G72 2.14 Rear
G75 3.62 Rear
G84 3.70 Rear
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
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 3.68 Rear
GM8 2.56 Rear
GN9 4.11 Rear
GS4 2.70 Rear
GT4 3.73 Rear
GT5 4.10 Rear
GT7 3.33 Rear
GT8 4.10 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
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
GW4 3.31 Rear
GW6 3.27 Rear
GW9 2.93 Rear
GX4 3.75 Rear
GX5 4.09 Rear
GX6 3.53 Rear
GY2 4.30 Rear
GY4 4.53 Rear
GY9 4.31 Rear
H22 6.17 Rear
H23 5.43 Rear
HA3 5.29 Rear
HA5 4.63 Rear
HC2 4.27 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
HJ1 4.55 Rear
HJ2 5.86 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

    

Back to the Archives