Pretty straightforward actually, I replaced the dryer, expansion valve and compressor, including replacing all o-rings. Flushed the evaporator, hoses and condenser. Put it under vacuum overnight and added 34-36oz of refrigerant. Got it blowing 38-39 degrees tonight. Also, fyi, the lower fitting closest to the compressor is the low side. Both ac valves on my v6 were the same size and neither one was marked. My biggest headache was the different 134 bottles, some are the puncture style, some are self sealing, some have their own nozzles.