I will be going into the dash to change out evaporator/heater core. (85 300 TD wagon) I read in another post about the enormous amount of time/energy/cost to do this - but I have no other choice. The heater core leaked (so I disconnected it) - then found out that someone put R-22 in the system - have to change out all rubber, and compressor - at a minimum. Being that the car is basically 20 years old - and if I'm going to put the money into everything else - why not do the evaporator now? This would "seem" to make sense to me.

I saw the posts by dmorrison - any other "how to" information out there that I can use.

Thanks Steve