The AOD's with the best parts from the factory are '90-'93. They have the best internals. There are several mods you can do to make them really tough. Is the '63 more or less stock or hot rodded? After '93 the became computer controlled.
Call Broader Transmission. They will build the AOD to match your motor/car and how you want to drive it and adapt the Cruis-O bellhousing to the AOD. I run a Broader built AOD in my 352 FE powered '62 Merc, and I absolutely love it, best money I ever spent. Beware, the shape of the FE bellhousing limits you to a 11" or smaller torque converter (The Stock T.C. was usually 12" or 12.5" in F150's). If your 390 is well built and a bit rowdy, and in that big, heavy 'Bird, you may have a hard time getting a low enough stall speed out of the converter to avoid cooking the tranny fluid at highway speeds. I ran into this problem with a 390 powered F-250, and using the Quicktime AOD to FE bellhousing, never could get a tight enough converter built and ended up putting a C6 back in it. https://www.broaderperformance.com/
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