Gear ratio on 2006 Chevy
CF Active Member
Joined: Aug 2013
Posts: 113
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Think you can tell by looking at the build placard inside the glovebox .
Check your RPO codes in the glovebox:
GU6- 3.42
GT4- 3.73
GT5-4.10
G80- locking rear diff
Check your RPO codes in the glovebox:
GU6- 3.42
GT4- 3.73
GT5-4.10
G80- locking rear diff
Last edited by vipergg22; Feb 1, 2018 at 6:28 PM.