Scooty
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I have a 1998 Chevy k2500 5.7l and the radiator has two extra ports on the driver side and on the passenger side the tranny cooling ports are hooked up I thought maybe I need to install oil cooling lines so I looked underneath and there isn't any outlets or options for oil cooling lines on the motor so why are the two extra ports on the driver side of the radiator one upper and one lower do I need to plug the extra ports or does it matter