[Armada]

Can't possibly go on at the hub. He must be talking about something like the Warn manual locking hubs. We have autolocking hubs, a totally different thing than locking differentials. And true locking differentials like a Detroit Locker, or Lock-Right cannot be turned on or off by the driver. They activate on their own.

But if you ever own a truck which does have a true locking differential in the front, you do need to have manual locking front hubs. Two totally different things. The manual hubs have a rotary dial on the front that you can turn. One direction is to "lock" the hub and the other is to "unlock" the hub. This does not unlock the differential. It unlocks the wheels from the axles. It let the front wheels and hubs move independently of each other so you can go around a corner a lot easier. With unlocked front hubs and a locker differential, both front axles would be still be turning, receiving power, but no power would be going to either front wheel, even if you were in 4 wheel drive, they would just be free-wheeling.

I hope I did not confuse you, but your friend must be trying to sell you some type of manual locking hubs, not the guts of a Detroit Locker differential. Those hubs are not available for our trucks yet, to my knowledge and even if they were they would not provide you with any real benefit in my humble opinion.