Now that's a thought. I have a rebuilt 727, I guess I could just refresh the 904, it was working fine other than the typical leak(s).

Then, if I wanted, I could put in the 8 3/4 rear and the 727 at the same time.

It's for a 70 Barracuda, I guess I just always had it in my mind that the 727 and 8 3/4 was the way to go for the higher performance applications.

Say, doesn't the 904 have a shorter 1st gear ratio also?