Im assuming the 04+ HD screws and scabs would have different length stepbars?

Can anyone tell me what truck this would fit?

6L3418101E31AM688K

Its 81 inches long, which when I measured my screw, it pretty much would run the whole length under both doors. Just wondering if the mounting points are different?

I searched on Ford Direct Online and googled the part number but nothing comes up. Or if anyone can point in the direction of a parts interchange so I can verify

Any help would be appreciated