Wow, thanks for all that detail rocketman. Mechanic also suggested new OEM thermostat, so that goes in next week too.
JH..I don't have a scan gauge, so relying on dash gauge....it has crossed my mind the gauge could be malfunctioning. I recall someone mentioning that possibility in an older thread, think it was Mark (MSHardeman).

Since so many have recently had the fan clutch die, I decided to replace, even though it's lower on the possibility list.
I can't really hear the fan, and read two owners said they could really hear a difference after replaced.....and I liked the idea of getting the newer design. Figure it's likely better, not worse.

Mechanic will be checking for other possibilities as well next week.

Interesting to see all 4 out 5 of us on Top Of The World had the same problem, (anybody know if Jon had problems too?)
It wasn't THAT hot..maybe 92-93....but the trail sure was much rougher, and therefore, slower than 2 years ago.