ok
just thought a little more follow up would be nice .
Thank you CSK . I did buy the HD hayden clutch . It seems to be running about 20F cooler . Now i now it is winter here not that it gets too cold . . But its a hell of an improvement so far , as it was engine was getting quite warm in the last month or so as winter set in .. Will see how it goes on longer runs and as air temp goes up .
It would appear that with the Mopar Performance clutch and fan being 1/2"off core , factory shroud , it was ok . Now fan is 1 1/2"or so from core , factory shroud , that Jag hub would not engage/pull enough air through .


Tex