Over the last two days, the truck got an oil change, a new muffler plus additional exhaust system work and four brand new tires.
The difference in the drive is amazing.
The work had to get done for more than comfort and safety reasons: truck is due for a state inspection this month. Getting tires yesterday (Saturday) ate up a chunk of the afternoon, but since my original plan was to do this during the week, it was a half-full deal.