Don't know about the Pinnacle, but our 2004 Designer has a similar bracket at the front, for the grille. It was technically an option, but came standard with the Medallion package.
2003 Ford F-350 V-10 Crew Cab 4WD Long Bed
2004 Jayco Designer Medallion 29 RLTS 5th wheel
Bill, Gayle, and Mindi (dachshund)
Retired at last !
Nothing is foolproof to a sufficiently talented fool.