Hydra: Remember these things all happened at the same time, and it's when the heating up began:

Lift kit
Bigger tires
RSG bumper
Electric fan w/Spal controller

So any of them could be the cause.

I have already established that it runs cooler with the stock bumper. I'm not going to test the tires by putting stock tires back on, sorry not gonna go there. Same with the stock fan, it's too much trouble to put back on. After putting stock bumper on it doesn't heat up any more during normal driving so I'm leaving it alone for now.

I am however waiting on pins and needles to hear from Everet, he's trying out a Jeep radiator and I am anxious to hear from him if it helps his temps stay lower. If so, I may do this too, a bigger radiator would be nice.