Hi everyone, I am taking the AC system from my 85 gl automatic parts wagon and putting it into my 85 gl D/R wagon.  I bought a vacuum pump and AC manifold set up from Harbor Freight to switch it over from R12 to R134A.  I have researched about the process so hopefully I can do it correctly the first time.  From Rock Auto I got the AC O-ring kit and a new receiver dryer.  From Wal Mart the R12 to R134A valve kit and the R134A.   After I get the parts removed I will flush the lines, the evaporator