don't forget the Mopar 8 3/4. they are often seen as junk but did appear in Hemi cars.
mid 70's and earlier Dodge Vans, Pickups, and V8 cars.
specifically the 62-70 B Body with a track width of 59.2"
and the 71-72 B body with a track width of 62" for you full width guys.
Some of these cars also have D60's if well optioned (426/4 speed).
I wouldn't hold your breath though .
Reg gearing a 8 3/4 is pretty darn easy since it has a drop out 3rd member.
Moser, Strange, etc. All have race ready parts for you.
I bought a B-Body 3.07 open housing on EBay drum to drum for $50 last year.