Didja check behind the rear seat in the plastic bag where some of the tools go? I've had 4 SD Fords since 2011 and that's where it's at.. FWIW, I will be removing the spare on my new F-450 within the next week and putting it in the bed where I can ensure the pressure's up and I don't hafta drop the danged thing in a rainstorn when ( not if) I have some flat somewhere...LOL
