Hot at highway speeds

Get an infra-red temp gun,, when you think it's hot,, shoot the temps at the rad inlet/outlet fittings,, the diff should be min. 40*,, if less ,, your rad isn't losing enuff heat..

also try shooting across the front of rad, half way down,, any cool areas are plugged tubes, the bigger the cool areas,, the bigger your prob..

Here's a very similar link,, with all the suggestions he tried,, it was the rad..

http://www.forabodiesonly.com/mopar/showthread.php?t=312573

hope it helps..

PS. RRR is right,, new fans don't turn on till 230*..