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So search with my name. You will find tons and tons of R134 Retrofit information....

I am certified for R12 but I wouldn't spend the money for it. I have done hundreds of retros without any problems. I can get R134 to cool just as good, if not better then R12 in an R12 system!!! Just needs done properly. <img src="/forums/images/graemlins/smile.gif" alt="" />


Nah... I'm fully A/C certified/licensed... I won't waste my time with r134a on my personal vehicles... r134a work well in the newer vehicles and know all the systems quirks.


I'm licensed by IMACA for A/C and also ASE Master Certified. Not bragging but just want to make my point that I have been doing retrofits for 10 years now and I get the same A/C temps with R134 in an R12 system as if it had R12 still in there. There are little things that need taken care of to make this happen but it is cheap and easy.

My '90 Mazda 323 shop car blows 30* from the dash, my '84 Toyota truck used to blow 34* from the dash with a mechanical fan!! Now that it'll have an electric fan with the engine swap, I'm sure the temps will be even cooler.