How or where do you find out what the rear axle ratio is in a stock 2004 C5 Corvette?

there should be a metal tag affixed to the side of the differential, pass side I believe. M/T cars have a 3.42:1 and A/T has a 2.73 unless it's the performance axle, which is 3.15

Hope this helps,
Ed

Gear ratio is on the RPO tag in the glove box.
GU6 = 3.42
GU2 = 2.73
G90/G92 = 3.15

Thanks guys :cheers: I guess if I just looked a little more I could have found myself :willy_nilly: