GM 2.2L Rear End Ratio Codes for your info

Look at the Lable in the glove box and check this out

GU4 = 3.08
GU6 = 3.42
GT4 = 3.73
GT5 = 4.10

G80 = Positraction Rear

Wynjammer Superchargers TM

Early & Late S10 2.2L

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