Is the bolt pattern for mounting the trans to a Chrysler flathead 6 the same on the flathead 8? I found a flat 6 to Chevy automatic adaptor kit but i have the flathead straight 8. I imagine it may be the same but I want to know for sure. and while im at it, for the driveshaft: th700r to ford 9" rear, what driveshaft should I use, Are there compatable U joints that I can swap caps or whatever to fit a chev yolk one one side and a ford yolk on the other?