Our first fifth wheel came with them and I used them as directed at my PDI. If you have been supplied them there must be a reason. All the people that say you do not need them are not the people that are going to pay for the repair if something happens to it. There were the little decal showing where to put them when installing. Must be a reason they were there too.
Goody Two Shoes and the Filthy Beast
2008 Chevy Silverado 2500HD
Duramax and Allison 6 speed
2012 Wildcat 282RKX
You can't make things idiot proof, you can only make them idiot resistant.