Howdy, I am new to the forum and to posting, I'm also the proud new owner of a 53 B4B. I like this truck and want to give it the help that it needs.It does not like to turn or stop.Steering is as bad as it gets.You have to brace your legs against something to turn the wheels. So I am ordering new front end parts thanks to the links I found here. Question...There are three different King Pin Kits,one with a nylon bearing, one with a metal bearing and one with roller bearings.They all have the same oilite bushings and the rest seems the same.I'm trying to get the right part but I don't know the difference.