Factory A/C compressor

[northerngmc]

I am working on getting the factory air working again in my 1968 C20.

I bought the truck one year ago from a board member who had recently purchased it as well. The A/C belt was off and the seller said he had put the belt back on and it would not work.

So I ordered a new dryer and o-rings. I picked up a POA valve here on the parts board that is a Classic Air 134A. I also have the 134A valve ends.

My plan was to take it to the local A/C shop and have them remove what R12 still exists, then replace the parts I bought, and have them recharge with 134A.

So I have been thinking, what happens if the compressor is shot? Why should I pay to have the system charged twice? I think I am going to bite the bullet and buy a new compressor while I am this far.



So here is my question, what compressor do I need for a factory A/C system?