Quote:
Originally Posted by ChevyTech
My 1993 Silverado has R12. I think 1994 was when the trucks got R134A
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Yea my 93 2500 was still R12. I had researched all that earlier when I was more involved with doing the swap, the year they switched and which parts were different. But I don't remember any of it now and even though I wrote it all down I have no idea where I put it.