What gear ratio does a stock 1993 Firebird Formula have? It's got the t56 6 speed tranny. I have heard 3.42 and 2.73 anyone know which for sure?

 

I heard stock they came with 2.73's with the option of 3.42's or something. Then in 94' they upgraded it to just a stock 3.42 with a 6 spd. Gonna hafta look at your code in the door jam and I'm sure someone can tell you what you have.

 

http://www.angelfire.com/ga/cincity/...nsmission.html

 

It depends on the M6 in the 93.

M28 was the F-Body spec M6 with the wider gear ratios, and thus got a 2.73 gearset.

M29 was the Viper tranny with the close ratio's, and got a 3.23 gearset.

There you go. Check your RPO sheet for either M28 or M29, and go from there.

 

thanks guys