ChryCorp Passenger Car Rear Axle Dimensions and ID: 1962 to 1989
Flange to flange (or drum to drum) numbers are way off. A-Body 8.75" axles are 57 1/8", F-Body 8.25" axles are 59 1/2".
Looks like another list of track width numbers.
The other numbers look accurate, though.
This seems to be the most accurate list I have found, so far.