8 3/4 price

There was no 8 3/4 in a bodies for 1973. They switched to the 8 1/4. You could possibly have a early 73 model with leftover 72 parts. Mopar NEVER made a lbp 8 3/4 for a bodies.

8 ¾
The only Banjo axle produced by Chrysler.
Introduced 1957…DOA by 1974
Last year in A bodies: 1972
Last year in E bodies: 1974