I agree I still like and use the PullRite hitch. They told me to use WD40 I myself like PB Blaster we use that work. My problem was lack of a weld the local dealer was fine and helped me out even though I was not there customer but am now. The dealer even adjusted my tension bolt free for me said it was to loose. Now bangs less on stops and starts you could move with one hand now need two hands and some oumff.
Camping from 2008, Life member Good Sam / KOA / iRV2
2014 Columbus 320RS
2011 Ford, F250, 6.7D, SRW