2 ms·

I think you're correct -- there's not any functional benefit to 4WD (vs AWD) without locked diffs. The signage should probably demand locked diffs.

• chung8123 2y ago
  Plus AWD can have locking differentials.
• alamortsubite 2y ago
  "4WD" implies transfer case, rather than center diff.
  • loeg 2y ago
    This isn't a significant functional benefit by itself.
    • alamortsubite 2y ago
      Yes, it is for part-time transfer cases (again, as opposed to center differentials).