I assume this means not all of mid 70's the A/F body overdrives got the 904 output. So there are overdrive tailshafts that have the 727 output? Are those aluminum??
The only factory aluminum tail I have come across for the a body is the 76 feather duster OD
I do remember seeing that brewers and passion both have factory aluminum tails listed with casting #s that are aluminum. I don't recall if they listed the years they were produced.
I was going to call them but found one elsewhere before I got the chance.
