Yep, until I'd done off-roading, I never understood why my uncle told me (when driving his vehicle, which had the ability to lock the diff) - "Never ever use th

Yep, until I'd done off-roading, I never understood why my uncle told me (when driving his vehicle, which had the ability to lock the diff) - "Never ever use this on pavement / normal driving". I obeyed him, but I always thought he was full of it, until I had the money & time & inclination to work on cars, and I learned what was really going on. "Aaaahhhh... so that's why he told me that..." Thanks Uncle Bill!