Ya, super nice rig! Congrats!
We'd all like to think someone who sells cars would know a lot about the vehicles, but in reality it's like a lot of people and their jobs. I'm a car guy and think I'd be a he!! Of a car salesman because I enjoy that stuff. Seems to most car salesmen it's just another job.
Hey fwiw, the super duty has auto locking hubs and the manual lockers just keep the hubs locked in, in 2wd or will lock it up if the auto system goes tits up. Check it out, put er in 4wd with the hubs unlocked. Front wheels will pull.