My mistake on the sticker on the side of trailer. It does not say star socket. It says star pattern for tightening the lugs but does not list socket size only the torque. Also, my trailer is 2015, not 2014 (typo). I went to dealer and he said 13/16 socket. I purchased 13/16 but did not fit (too large). I went back to dealer. The tech pulled out his socket set and went to a trailer like mine, tried his normal sockets and could not find one to fit. He was stumped so he went to is metric set and found a 19MM that fit. He seemed puzzled that the lug nut required a metric size of 19MM. He has not had this problem yet.
Did Forest River make a change on the Flagstaff to metric. Are the stud threads also metric? Owners manual says 1/2".
2015 Flagstaff 26VFKS
TV - 2014 F150 Crew Cab 5.0L
WDH - 1,200 Equalizer