Does it ever! We had a kid at work years ago, who said that he was patrolling areas in a 4wd F150, that the rest of us used to patrol with dirt bikes. One of the other guys doubted him, and decided to ride shotgun, to see if he was really getting into those areas. When the driver stopped to shift into 4wd, the guy riding shotgun hopped out to lock the hub on the passenger side. The kid driving asked him what he was doing--he had no idea that he needed to lock the hubs for 4wd...