What rear end is this?

74-75 imperial 9 1/4
Sadly it uses "C" clips to hold the axles in the tapered tube housing.
Not really worth anything from a A body perspective, but could be to some imperial owner looking for the discontinued brake rotors. The have a hat type emergency brake which is nice.
Most were limited slip also.
When a person is being realistic rear disc on our old mopars add little more than cost and simplicity to service to a build.