How much did you pay for Teflon? Virtually all are made of Nylon if the package label is correct. There are two sizes, a 12" and a 10", never have encountered two thicknesses though. When the Nylon plate becomes worn and will not stay on the king-pin, use a ball-peen hammer and softly strike each (warmed up) "finger" once about 3/4" from the end. Hit it too hard and the Nylon will break. It will expand the Nylon enough to make it fit the pin tightly again. I used the same plate for 8 years before it was removed at an RV shop and disappeared, that one had the fingers tightened 3 times.
2000 Winnebago Ultimate Freedom USQ40JD
, ISC 8.3 Cummins 350, Spartan MM Chassis. USA 1SG, retired;PPA,Good Sam Life member."We the people are the rightful masters of both the Congress and the Courts - not to overthrow the Constitution but to overthrow men who pervert theConstitution. "Abraham Lincoln"