The only other significant change has been the torque converter K-factor (performance curve), which has been changed a couple times. The converters are all interchangeable, as far as actually fitting / bolting in, but the performance (stall speed, etc.) has changed somewhat. This could potentially give you some issues if you use the wrong K-factor (like no upshift during WOT accelerations), but I don't know the details (whether the shift schedules were modified for the various K-factors, how the K-factors compare at higher speed ratios, etc.), so I don't know whether using the "wrong" K-factor will actually give you any problems. I suspect that it would NOT cause any problem, but I have to give you the caveat just in case.