I put in an old york ac compressor with after market condensor off e-bay along with under dash unit from the 50's era made by Sears that I found at the swapmeet.In my 53 chevy pickup. Cools to 32 degrees. Hoses made at a local hydrolic hose co. here in Ft.Worth. Althou system was made for R12 I used 134A.I also insulated my cab every where I could including under dash floor and toeboard,behind seat and around the corners and the roof.Very confortable performed all work my self had a blast and It works great lots of comments from show goers.Will put Pics up as soon as I figure out how to do it.If you have any Questions please E-mail me @ [email protected] A whole lot more talkative than one of the after market ones and not that dificult to do. Neal