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Ok 89 trooper had a problem with the lock nut that goes on the hub nut, and i need to replace the locking nut, first question how does that locking nut keep the hub nut from backing out



The bearing sits in the hub.
Next is the hub nut.
Next is the hub nut lock washer.

The knuckle on which you threaded the hub nut has 2 notches.

The lock washer has 2 tabs which sit inside the 2 notches.

The lock washer secures to the hub nut with 3 machine screws (phillip). The nut can not go anywhere now because the washer is screwed to the nut and the assembly is held to the hub/knuckle by the notches and tabs.

Your bottom picture depicts the hub nut and the knuckle on which it is threaded. At about the 12:00 position on the knuckle, you should see a notch. There's one opposite that which is not visible in the photo. The tabs of the lock washer sit inside those notches.

Last edited by bamashooter; 11/17/08 11:16 PM.