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    2007 Lincoln Truck MKX 2WD 3.5L SFI DOHC 6cyl

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    King Bolt

    King Bolt Operation:

    1. A pin or shaft on which the steering spindle assembly rotates.
    2. The pin, mounted through the center of the trailer upper-bolster plate, that mates with the fifth wheel and locks to secure the trailer to the fifth wheel.

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