HELP with oil cooler
ought to have them, maybe with a blockoff plate
installed, there's an OE adaptor and aftermarket
ones (which would give you AN fittings, but the
truck one has swaged hard lines to take you past
the exhaust manifolds with no worries about cooking
soft lines).
In most street driving, the oil barely gets warm enough to work the way it's supposed to. If you add a cooler, then it will frequently never get to operating temp, and that's not good.
If you occasionally hit the road course, you're probably better off using a true synthetic oil, and changing it more often.
Oil coolers add weight, cost, complexity, and additional failure points. If you don't really need one, you should skip it.

