I got a 93 mighty max 2wd. Ac not working from day 1. I have been driving with no ac for 2 years. Recently, I tried charging the system...the system pressure wouldn't build up. It built very low pressure and compressor clutch engaged for a while then no pressure at all....wasted 40 bucks on 134a.... the stuff seemed leaked from the back of the compressor.... I am pretty sure the compressor is bad...I have taken it out...Now question is... should I buy a new (refurbished) one or get current one refurbished? Cheapest I can find on ebay is about 150 bucks...ouch........... Don't know if any local shop can refurb it and how it cost..too late to call...what do you guys think??