97 tahoe 4x4

[nascarguy320]

How do I find out what gears are in my truck.

 

[dirtridinz71]

Look in the glove box for the sticker with all the RPO codes.
GT4 -- AXLE REAR, 3.73 RATIO
GT5 -- AXLE REAR, 4.10 RATIO
GU4 -- AXLE REAR, 3.08 RATIO
GU5 -- AXLE REAR, 3.23 RATIO
GU6 -- AXLE REAR, 3.42 RATIO
G80 -- AXLE REAR, LIMITED SLIP (POSITRACTION)

 

[nascarguy320]

Thanks.. Got the GU6 3:42 axles