Complete 1 System Carrier Straight A/C: came to replace compressor. Recovered ref. Removed old comp. installed new comp. repiped copper lines. Installed new filter dryer. Replaced core valves. Replaced dual cap. Used a 35/5 cap from truck stock. Leak tested system. Pulled vacuum. Added 6 lbs of 438A. Tested system. System is running great at this time.