Hey fellas: I'm down here in southern Louisiana and its getting to be summer time again. Both my trucks lack a/c they have the controls they just both need a whole new system especially the 82. I dont mind having the fresh air too much either its just sitting in daily traffic....yeash! My question is to anyone else out there running the luxary of a/c is has anyone converted from r-12 to 134a? The only reason I mention this is that if all the a/c components are gonna have to be replaced anyway why not convert it over so that the next time it will be cheaper to fill / fix?