My dad and I are wondering what the deal is with the manual hubs on his 250. His four wheel drive works just like mine, you turn the **** in the truck when you want to use it. put it in neutral for 4 low. So why on his truck do you have the option to turn the hubs to locked? 4 wheel drive works just fine with out them being locked.

 

The answer can be found HERE!

And HERE is the entire thread that is still on the first page of this forum.

 

Just in case you lose vacuum to them and they only work when locked in (like min, Doh). Just a manual over-ride.

 

Nice feature isn't it!