i have bought a t56 transmission but dont know what one of the plugs are for.here are some pics.thanks for the help
so what do i hook it up to?..lol.the t45 didnt have this from what i remember
...and yes it has the stock 03/04 ratios and im running a 3.73 gear in a solid axle.i plan on diong an eaton swap or vortech soon