I have a 2001 F350 4x4 with 5.4 gas engine and a 4R100 auto transmission. I am into the truck really cheap and want a diesel engine so I can burn vegetable oil and diesel mix. I do not tow much, mostly a daily driver. Has anyone used a 4R100 behind a 4bt? I know I can bolt it up, but will the torque converter work with the lower speed engine? Anyone used a stand alone transmission controller in this aplication? Please help!