Years ranges for different bushing sizes on front pump assembly on 727

I need to replace the front pump assembly in my 727 that is backed up to a 360 in my Demon. I have a spare small block 727 at a friends house I plan on using as a donor, however the transmission shop is saying there was a difference in bushing sizes in different years. He seems to recall that it was anything 71 and before was a small bushing and anything 72 and after was a larger bushing. The trans that is in the Demon (unknown what car it came out of) has the smaller bushing, and the donor trans I have is from a 71 Fury small block. Just trying to see if my plan to use it as a donor pump would work. Thanks