$63.77 was charged for a shifter seal replacement. The transmission oil level is fine. The shop did try to find a bad bearing. The manager and master tech both went for a test drive. They scanned it while driving. They could not reproduce the hum while it was lifted. The diagnosis is road noise. The noise is a hum and not a high pitch screech. The directional tires may hum at certain speeds. I'll have go and look at tire reviews.
Effduration is correct. The driveshaft was not removed. Instead of going out to buy a single small seal, they took a seal from a rebuild kit.
Next service due, new transmission and transfer case oil at 190k miles. It's at 171k now. I'll keep driving it. I'll drive it a little harder too.
A donut and kolaches bribe did work.
