With that in mind, am I better off leaving the dryer and o tube? The compressor did not fail, it only leaks. I don't want to risk breaking a line if I don't need to. It also looks to have a replacement compressor installed at some point. It has delphi on the label and I am pretty sure it left the factory with a delco.The rear lines have never been reproduced and have been out of production for a while now so can be very hard to find if you need them. Hopefully you won't. I think the all the under hood lines related to the 6.5 and rear AC are the same deal so be careful when working on them not to damage anything.
I think the reason the rear seems to work better than the front is it uses a valve like the 60's systems used that is variable and larger than the orifice tubes so it can adjust for a less than optimal system and possibly pass smaller chunks.