This was the last hurdle in bastardizing my A/C system. Most of it is '94-96 R134a parts, but that evaporator wouldn't fit in the '93 outside HVAC box, and I didn't feel like buying the other box just to end up with this one as a spare. So to connect the parallel-flow condenser's Aluminum liquid line with a small garter spring fitting, I had to attach the mating part of an R134a evaporator to my (larger) R12 evaporator. I cut both of them, and used a common 1/2" compression union. It should be fine since the peak pressure here is only about 100psi (when OFF; running pressure is closer to 25psi). But if it leaks, I'll disassemble it & add threadlocker or some other sealant.

UPDATE: It worked for a while, and then quit. So I pulled it out & did it the way I should have done originally, using a complete '94-96 4.9L A/C system from the JY.

Owner caption August 2013 · Photo 0 of 5000