OK, it's getting cold, so it's time to replace the heater core in the 72 Charger (with A/C). I think the original p/n is 3441180.

Doing a few searches brings back several different makers such as Proliant, Ready Aire, and Four Seasons. Any of those the best?

Any I should stay away from? Any experiences?

Thanks! JK (mity225@mchsi.com)