finished retro fitting my ac to R134a after having to replace the compressor, evaporator, drier and flush all the lines. Man, I had soooo much fun with the compressor and evaporator. I ended up having to purchase another drier cause I got frustrated with attaching the lines to it and striped the connection. Usually when I get to the point of swearing, I walk away from the car and take a break. This time I learned the hard way and wasted more money than needed. BTW, is there a place that I can find a "tap and die" to re-thread the drier? I can't find 1 that big here in the island.