If You watch that & are keen, You can observe that that truck is not "steady", it's visably apparent as the driver is switching lanes it's movements are less than precise. It's not clear why, & the driver "may or may not" have known there was a mechanical issue, it "might" have felt like a tire issue to them. *EDIT*Either it's a 2WD Tonka-Toy or the nut came off & it separated & left the stub behind on it's departure. It's hard to believe the stub-shaft sheared off, but if the bearing was running hot before seizing, it's a faarrrr outside possibility?? It's also unlikely(yet possible) the hub was changed, & the cap-screws were started but never torqued & the whole thing left, but a 4×4 would have an outer CV still attached.* Vid is a bit fuzzy, & no obvious signs of smoke before the fail, but I'll watch it again.
