'93 is r-12, it can be charged but you need a licence to buy the refridgerant. I know there is a site(can't recall url offhand) where you can take the test and get the licence for something like $15. I'm pretty sure it was '94 that was when the switch was made to r-134a. To convert your truck you'll need new gaskets for all fittings, a new drier, different compressor oil, and to purge the current system of any risidual r-12 and/or r-12 compressor oil.

Last edited by Kona; 05/25/04 08:55 PM.
Back in the West!