Truck is stock, with minor exceptions noted in signature.

FYI - I just installed my pyro gauge at 86k. I had the truck loaded with 9.5' truck camper + 14' horse trailer carrying 4 doggies. Pulling over Vail and Loveland passes my EGT's were 1450 - 1500 in 3rd gear TC locked up WOT at 70 MPH (all she would do)! Not bad for a stock rig.

Do other 04.5+ owners see these high EGT's when at full-load output? i.e. is this common with 04.5+ trucks?

 

Yes, pretty common. I don't like mine to get over 1350 pulling a steep grade but I am modified.

 

Perfectly normal. If you want to get them to run cooler I suggest a Smarty Jr.. it will really drop your EGT's and give you a little more power..

 

I try to use the down hills to pick up speed so my EGT's are very low at the crest of the up-coming hill. I don't like my EGT's going too high.

 

I think a boost fooler will help cool it too...

 

Mine was the same way before I installed the Smarty Jr. Stock with a camper and pulling a flat bed trailer with a Jeep it would hit 1500, now with the Smarty Jr. I can't get it above 1400 on the same passes.