Good reman A/C Pump?
At a minimum, you will need.....
All new O rings
New Orifice Tube
New evaporator / drier
Remanufactured compressor / clutch
Vacuum all remaining R12, mineral oil, and moisture from all components of system (very important...the two oils are NOT compatible, and if they mix, your new compressor will die a noisy, smoky death).
Charge with R134A to 80% of recommended R12 capacity using PAG oil.
I am sure many will disagree, but I just put on an Autozone Reman compressor and clutch, cost me less than $90 and it's been working fine for 3 years now.
I get 43 degrees at the vent in 100 degree ambient temps.
Not a particularly hard changeover, just plan on spending a whole afternoon doing it.
http://www.aircondition.com/wwwboard/
http://www.ackits.com/forum/categories.cfm?catid=3
If you do decide the reuse the old ones, just make sure they are free of any R12 and mineral oil residue.






