RV2 AC compressor Rebuild help

The compressor case on the right is an older part number going back to the late 50's early 60's. The V piston compressors had a long life span from the late 50's to pick up trucks in the early 80's. The RV-2 part numbers I listed are from a 70-71 parts book as that is the age of my 71 Charger. The last pick up truck compressors may have been the smaller displacement compressors because truck cabs are small and don't need the cooling capacity of a big Chrysler. The piston package you show is a late 70's piece and i don't really know anything about the last of the V piston compressors from that era. My earlier posting was just a heads up that not all V compressors are RV-2's and changes happened along their life span. I think your approach of rebuilding your own compressor is a good one because it's very difficult to find a quality rebuilt RV-2 today. None of the commercial rebuilders seem to care about this old stuff today as the market is so small.