Hey all, I'm new to this forum so please be patient with me. I have been looking for a 1972 Chevy pick up for about 8 months now. I have finally found one in my own city for sale that I'm interested in but it doesn't have air conditioning. My question is this: Can anyone tell me how difficult it is to add air to a truck that did not originally come with it? I'm not a mechanic but have a pretty decent knowledge of mechanical things. This truck is a Cheyenne and looks great, I hate to pass it by if adding air is somewhat simple. Any help is greatly appreciated.