You should go buy a Unimog to one up him. Or stop worrying what a neighbor says. BTW it’s locking rear differential, not locking real differential.
Thanks for being a psychic or appealing to your estrogen clairvoyance. In case you missed it (you did) it has nothing to do with one-upsmanship, but rather a technical question, but on the plus side, you have the rectal orifice schtick down pat...