I pulled it apart last night. Rotor is trash; it is below minimum. I limped it home about 25 miles, but it is finished.
My other rotor shows a lot of wear. In the middle of the rotor, it is barely meeting min thickness. If it is surfaced to clean it up, it would take it below min. With 88k miles.
I am looking at aftermarket rotors and pads. Even though my Dad can get a break on pricing, the factory stuff is just as expensive as high grade aftermarket.
There are some rotors and pafds that are less expensive. But, I haul stuff every couple of weeks, either the tractor or the Troop trailer. I don't want to be hauling our Troop trailer and have a bunch of Scouts in the truck and have a brake failure...