Can i convert r12 to r134 A/C myself and how much it cost for toyota 1992 camry?

since i bought it and the A/C is not working so i have two choices either to recharge with the old r12 or change the whole system to the cheap r134 . can i do it myself? i like to fix stuff my own and how much it `ll cost me or how much should i pay for the mechanic and what `s the best place to do this .. tireplus?

Can i convert r12 to r134 A/C myself and how much it cost for toyota 1992 camry?
Freon 12 was banned from use in automotive air conditioners maybe 10 years ago. The proper solution is to have your system evacuated of all Freon 12, replace the AC filter, and recharge with R=134a refrigerant. About 1.5 to 2.5 pounds of refrigerant will be required. Best to have an AC shop do this for you to get good cooling.
Reply:Everybody can tell you the proper way to do it, but all you need is a kit (sold at auto parts stores) to adapt R12 fittings to 134. Doesn't take near as much 134 to fill system. No need to flush or change oil or any of that. I know I'll get crucified for this, but It's worked on hundreds of vehicles in our area. Done some of mine that way years ago and not one problem. Also can get a product called Freeze 12 at auto parts stores that replaces R12. I use this in my farm tractors and a couple of pickups. No changes needed with this.
Reply:I happen to have a 20lb. container of R-12. If you are interested, contact me at carllazvich@yahoo.com. Thank You.