[Dayton601]

I have an 81, back around 1995 I added the valve that converts it to quick connect, i put a vacuum on it, and changed out the oil, put the 134 in, and up till a few months ago still blew cold, the truck sat parked from 2002 till now, never added any Freon, although not as cold as 12 but considering the cost of 12 its better than vent window air, I have it apart now because I'm doing a complete over haul of the truck, but 134 is how i will be going back, It wont be a daily driver so as long as it blows cold all will be good,