Just a shifter on the floor, The hubs are Auto, with a 6 bolt pattern, When i was referring to the gear, it can only been seen when i remove the hub.(6 bolts) and there is a spring loaded gear behind it, on a splined shaft, (axle shaft) That when the 4x4 is ingaged, it pushes the gear into the ring gear in the outer hub. and the spring should push it back when out of 4x4, but something is keeping it from going back.