What to do under the dash besides this?

2nup350 said

"73 Dart. I have to pull lots of things off because of a problem laundry list -wiper bushings, heater core, speedo cable, vacuum hoses. is there anything else I should do while I have the dash all apart? was considering pulling the evaporator core and replacing it with something more appropriate for 134A. and replacing the glove box, mine is kinda alright but still, a nice new one....

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A nice new one will never be as high quality as the original core or evaporator (unless you use Bob at Glenray to recore your original core). Pressure test the evaporator and if it does not leak clean it out with AC flush and reinstall it. I rebuild the RV2 with R134a seals (easy), remove the EPR valve in the compressor (wrong pressures for R134a), flush the lines, evaporator, condenser with AC flush, new R134a o-rings and dryer and fill it up with R134a and be prepared to freeze yourself out. If you live in a moist climate you may need to install a clutch cycling switch that has the thermocouple on the intake to the evaporator to keep it from freezing up (in Arizona I have not had any issues with that).

1972 Duster Build with my Daughter