Didn't Chrysler sell car models with various "packages"? Somewhat like a bunch of options together in one order code; like, if you ordered a V8, you automatically got a 8 3/4 rear; or a 4-speed and 8 3/4 rear? Also, how about interior finish grades?
Yep depended if it was a 340 etc. Some came with 8 3/4 mostlyautos with 340s 383s etc. Then the rare 4spds and hemis had a dana. The trims are broken into customs, swingers, 270s etc.
AC cars got large radiators etc. But most 273 318s were all 7 1/4 rears except later cars they had 8 1/4s too.
Hay I recall the Taxi cars with a /6 and a 727 trans that is a rare one too!