I'm ready to reinstall the factory a/c in my 68 elky, and dont really know what should be done. I think I have all the components, and I'm counting on replacing at least a couple.
So, the compressor has been out for probably 5 or more years, so I'm planning on having it rebuilt. Is it going to be easy to find someone to rebuild this, and about how much should I plan on spending?
Should the suction/discharge unit that mounts on the compressor be replaced (it appears to be in good condition)?
Should the evaporator/dryer be replaced (I've heard this is a given when going through the a/c system)?
The condensor will be replaced. It is pretty bent up, so no question about that.
What is the component in the firewall called, and what does it look like? Is it something that fails, or leaks often, and can it be replaced easily/affordably. I am planning on having an a/c shop purge/leak check the piece in the firewall.
And lastely, I plan on putting one of the new refrigerants in the system. What kind of special preperation will be needed.

O.K., that should cover the questions I have.
Sorry it's so choppy.
All help is appreciated

Yamaha,I have been in a/c hell for a while with my 71.As a matter of fact it never quits .I'tell ya what I know.Compressors for our cars are cheap(about $50.00-$60.00 for a rebuilt at Napa or auto zone)also definitly change the reciever drier.(even cheaper).Replace the other components as they go(and they will)Which ties into my final bit of advice.(I will catch flak for this) SWITCH to R134A.It does not cool as well(some say)but it is way and I mean WAY cheaper to discharge and charge.SEAN

The evaporator is the piece on the firewall. You may want to pressurize this before adding freon (with air) to ensure no leaks. Also, you probably will want to change the expansion valve ~ $25. Change the reciever/dryer for sure, this will asborb moisture when open to the atmosphere.

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