[60-66]

To simplify things a bit you mostly see Kelsey Hayes made wheels . We are talking 1964 15 inch here so the markings will be the KH stamp and GM stamp on the face or center hub by lug holes. My 1964 Lambrecht truck has 15x5 1/2 wheels with the larger .625 valve stem hole. Im still trying to figure out the 15x5 VS 15 1/2 wheel application . Ive seen both and have both . Much of this comes from GM parts books, or better, from original un touched trucks with all five matching rims. I notice 1962 and early 1963 rims do not have a bead lock on the outer edge and these are 15x5 wide , but then two others, one 1963 with guaranteed with original rims and a 1964 both have bead locks and the 1964 is a 15x5 1/2. Presumably the one is a later 1963. Below are pictures of one wheel from a 1964 Lambecht trucks spare tire wheel. Its hard to see the "1/2 after the 15 but this is a 15 1/2 inch wide wheel.