yellowdartdave 8 3/4 posi and driveshaft for the combo all in, just have to track down shifter linkage for a 4bbl,V8,727 colum shift. I believe most 318 cars had a 904 trans in 1973 cars, not sure if all 1973 cars with 360 had 727 or was it 904. probally earlier years with same combo iam after...