rear end question

Quick question, been going through the forum and maybe I'm missing it, but what model, engines/trans combos would one be likely to find a 8 3/4 rear in an A body?

four speed-A-833
Auto-727 TF (Torque Flite)

second, what rear would be likely to be found in a 74 dart custom 318, fully optioned car?

Probably a 7-1/4

For a quick ID see this link:

http://www.mopar1.us/875.html