I'm about to get my Trans rebuilt in my 91 Park Ave. I know there is two seperate transmissions; one with a 2.94 gear ratio and one with a 3.06 gear ratio for a nonsupercharged engine. Can I go bigger than a 3.06 ratio. Whats the biggest gear that I can put in it? I need some quick advice because Im dropping the car off at the shop next week.
Thanks