Probably the least of my problems, buuut it's starting to get a little hot out and some air conditioning would be nice (especially considering my mother won't ride in my truck without it and I'm not a fan of riding in her Cobalt). My '86 D-50 has factory a/c and everything seems to be intact, so I figure I might as well try and get it running. How would I possibly go about that? Obviously it's gonna need to be charged, but how in the world would I go about that in this truck? Is there anything I should check before trying?

Definitely not looking to replace anything expensive though, if getting what I've already got to work again isn't a viable option I'll just keep using the ol' 2-55 a/c system