Suggest you go to local NAPA store, ask for catalogs that cover bearings, seals, and Truck chassis parts. They can get no charge for you. With a little research you can find most parts in them. I also discovered that Chevrolet used the same king pins for LOTS of years. My '51 4400 now has spindles, brakes, and hubs from a 1980 c50 truck. Parts are easy for that.
Good luck
