Hi there,
Well, I can only be sure that it is a 9/16" x 18, but I'm not sure about anything else, such as the length or knurled area dimensions... Funny thing that everything I find mentions a 7/16" diameter stud, but I know for fact that is not the case for a big truck... Never knew how hard it would be to find such basic information...
I ask myself, could this be it?
https://www.napaonline.com/en/p/NDP6413137
