When we bought our QBOK, we had the PullRite installed too. Because of the 'capture plate' on the pin box the plastic cover won't fit without a little Dremel action also. But, I still haven't found time to do it.
2013 Palomino Sabre 36 QBOK-7
2012 Ford F-350 SRW 6.7 CrewCab ShortBed
PullRite SuperSlide 18k IS Rails
2006 HarleyDavidson RoadKing Classic