A couple questions on the front heater core. I can tell by comparing the temp. on the hose feeding the heater to the temp of the air coming out that my front core must be slugged with crap. Is it a nightmare to get out? It sure looks like it, and when/IF I get it out can it be cleaned or is there a cheap oem replacement I can pick up? I just got done fixing the rear core tonight, that was alot of careful work with a small torch, it's the only thing heating my cruiser right now.