Alright, I'm tired of my defrost not working worth a crap and my feets freezin' in the winter, so I'm gonna swap in either a YJ fan or a 73 blazer fan. Any opinions on which is better, and what do these things cost at the local autooreillynapazone? This just involves taking out the old motor and grinding the hole out a little bigger and then slapping the new motor in right? What about wiring? That cause any problems? Thanks in advance for any suggestions/advice.