Valve bodies w/PTKD interchange ?

Most but not all valve bodies will interchange between 904's and 727's. Some trans are lockup and some aren't and they don't interchange. You can also run into the issue of one mounting bolt not lining up when switching between 904's and 727's. I thought all 64's were cable operated? If your just looking to add PTKD why don't you just order a PTKD add on kit from A&A so you don't have to swap the VB?