I have several that are outdated. The time frame is 5 years until expires and I would imagine you should remove and rebuild the converter and trans along with a new flexplate, BUT order and receive the fp and compare with one removed for crank to converter height! Just in case it changes
which it does
I imagine if rpm's are kept below 8,000 but if you go over 6,000 you might consider a BlowProof Bellhousing. I have a JPW which is kinda bulky and starter nose hit on mine. There are some more available and are lighter and thinner for clearance issues.
Oh, by the way you might need a tranny blanket/cover. I use the bent aluminum ones like from TCI (sometimes cover don't fit boltholes good and I use a countersink to move). I have replaced in our 64 Falcon but is tight.
I am adding a tip on the 4 bolts on the servo.