Thanks guys :-)
I got a pair of each from Firestone, Discount tire and O'Reilly's ^_^
2 Dill, 2 Schraeder which have Chine marked on bottom
The Dill show to be made in Chine on the internet
2 from O'Reilly's are Xtra seal ..... made in Chine
TR415 are .625 hole.... normal passenger stuff is TR418, .453 hole
The wheels are 15" x 8", cut apart with a backspace of 3.75"
They have material added between the 2 halves
They center in my 65 F100 better than 4" backspace
Larry, I went to a few sites, they stated if driven a lot of miles the nut should be periodically tightened
I have no idea, but it seems a bit of lock tight would help
Ricky.