i have a 727 out of a 77 or so motor home,it had a 440 in front of it and a Dana 70 behind it,it has a HUGE bolt on yoke on the back of the trans and is a short output shaft,so.....is the shaft diameter and spline count the same as a regular 727 ,or is this dude a creature all of its own?,no plans to use,just wanting info in case