I just installed these last week. My brother had an old Concorde parts car I got the fans from. Bought the harness from Kirban's, #7609. Also grabbed some aluminum bar stock from Home Depot and made some tabs to hold it in.
I don't think it has been mentioned yet, but some guys like to use foam or some other protectant on the edges of the fan shroud to prevent chaffing on the radiator.
It's plug and play, works very well, drops the temps fast when they activate. I thought they were a little quieter too.
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