Found a set of 100year aniversary Harley seats out of an f-150, will the undercarriage bolt in to my 2004 XL superduty??? Thanks guys!!

 

Unfortunately I can't be 100% sure about the fit but I did have and 04 F250 SC Harley Edition. If I remember correctly the (Supercab) SC did have the same bucket seat as the F150 but the (Crew Cab) CC had a different bucket seat in it. The seat belts if were also integrated into the SC seat so the rear door could open and not have the belt in the way of entering and because there was no pillar behind the front door where the CC had the belt fastened at the pillar behind the front seat. Maybe this will jog someone's memory for you.