It's a 99 ram stock trubo now but will be upgrading to a 66 single it's just going to be a week end drag racer and something I drive for fun has 3.54 gears right now I'm leaning towards with gorend or one from Dans diesel
Call Goerends or whom ever you want to do the transmission with. They usually have a lot better reasoning with what to go with. My guess would be 1700-1900.