I know and agree, it sounds like a candidate for a bad wheel bearing. But did you also remember to grab onto, tug, etc and inspect the u-joints on the half shafts?

Just a FYI, not sure if you know it or not, but the correct way to service that axle nut is to replace it with a new one each and every time it's removed. Yeah I know, some people slobber loctite onto it, slap it on and call it a day, but I (and you?) travel places lots of people don't, and at times and in weather where a problem would be more inconvenient than words can describe.

Edit

__________________
2017 Lightning Blue Mustang GT PP 430/402
CJ Pony Parts Lowering Springs | Texas Speed Longtubes | PMAS CAI | Lund Tuned | Borla S-Type Catback
2013 F150 FX4 5.0 - Sold
1998 Jeep Wrangler TJ 4.0 5spd - Sold
2001 Mustang Bullitt - Sold
2005 Level II - Sold
2001 Integra GSR - Sold
1999 XLT - May 2013 TOTM - Totaled