so i can find a mustang t56 cheaper and easier than a gm one.. is there a difference in the case and bellhousing to transmisson bolt pattern. and dose anyone know if the input shaft is any differnt.. or any other differences between them.. i dont care if i have to rebuild with a different input/output shaft but i was jw so when i buy one it will work... im putting a t56 in my 69 c10 im not worried about putting it in so i posted here not in the conversions section..