AC Conversion from R12 to R134a
I'm looking to convert the not-cool A/C in my 1993 ATTACK! to R134a. I've seen a handful of how-tos, but for the Acty specifically, how much of a bear is it to replace the receiver/drier and replace o-rings? How much of a tear-down is needed? I plan to have a shop take out the remaining R12, but will finish the rest myself - renting manifold gauges and vacuum from Autozone.