Locking Hubs: Description

Automatic hubs are engaged by rotational force of axle shaft when 4WD is selected at transfer case. Automatic hubs disengage when 2WD is selected or vehicle is driven in Reverse. Cams, brakes and springs are used to lock or unlock automatic hubs.

Engagement is accomplished through gears and springs actions within hub. When hub is locked, hub brake engages inner hub, which is connected to axle shaft by inner splines of hub. Hub brake is connected to hub body by outer splines.