I too have classic auto air in my 52. I have no complaints about the quality of their product. The only complaint I have has to do with their customer service because when they sent me the a/c kit they neglected to send me any a/c vents. I called 3 times over a period of a month and each time they smarted off at me and said they would send them right out. Well, that was over six months ago and I have yet to receive any vents. Next time I am going to go with Vintage Air.