I had to look at my notes, and i'm sorry, i mis-recalled the tag number and misrepresented what happened.
I had been under the impression it was a A36 (not A33 as i said before, sorry) - which would have been "A36: 69-71 performance axle package with 3.55"
It was in fact an A86 car (69 only Interior Decor Group). hence the 7-1/4 not anything better...