I noticed this too. The needle reaches a certain point and never budged from there. I've only seen as high as 230°, but you'd still think that there would at least be some sort of movement from that gauge.
Question, do you need to get the Advanced Safety Group for the ability for the truck to brake on its own while going forward? I know it includes full speed forward collision warning. Will the regular parksense trigger braking going forward?
The air suspension will level out when loaded up, but it does take away from payload. I'm not sure how much. I would definitely get the 3.92 with that heavier trailer, especially if you drive in hilly or mountainous areas.
I don't know if someone has already started a thread like this, but I'm looking at some 275/65r20 tires which will be about 34". I want more sidewall to help protect the wheels. Can that large of a tire fit on the 1500's with no rubbing or clearance issues? The truck is on completely stock steel...