I am sure the problem is with your hublocks. You will need to replace both
of them to solve your problem even if you stay with automatic hublocks.

Don't worry about staying with automatic hublocks if you prefer them. The
factory installed auto hublocks are also Warn hublocks and supplied to
Ford. The hublocks have been improved over time and the should work for
you just fine.

Unfotunatly, you can only by the Warn automatic hublocks through a Ford
dealership so it might cost more than buying the Warn manual hublocks
through a retailer.

It is very easy to replace your automatic hublocks!

If you switch to the manual hublocks you will need to replace the wheel
bearing retainer nut. This requires some specialty tools. This is not
difficult to do and the tools are readily available. Just but be sure to
consider this in the total cost of changing to manual hublocks.

Happy and Safe 4x4 driving,
Scott