I just ordered a new 4 core copper replacement for the 70, it will be here on Monday. I'm going to flush the system with the old radiator and then install the new. I'm going to send the original that now has a a 3 core and get it recored with a Modine. Since I did have it recored once awhile ago with its present 3 core I am assuming that the guy used the same kind of core that was originally in it but I don't know for sure. Anybody know for sure what I should have 3 or 4?
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