Hy carolines truck and guys, bartamos kind of beat me to this. carolines truck, I did look through your pictures but I couldn't find any disc brake conversion pictures. I don't know if your conversion used the stock hubs or not. Years ago I inherited a bunch of aftermarket catalogs, a few of them were Bower/BCA bearings and National oil seals catalogs. The 1973 catalog number 510 listed "tapered replacement" bearing part numbers under the standard ball bearing part numbers. The front wheel inner bearing part number for Chevy 1/2 ton trucks from 1946 to 1959 is B-52 (ball bearing), the tapered replacement part number is 909052-R. The outer bearing part number for Chevy 1/2 ton trucks from 1946 through 1957 is B-01 (ball bearing), the tapered replacement part number is 909001-R. I must be honest, I have tried to order these in the past through my local parts store, but have always gotten a "nothing available". But there may be some sitting on a shelf somewhere, and at least you know there was a north American manufacturer of these parts at one time, hope that helps.
