Hi, I've been searching for a while but I'm not seeing the answer. I've got this f100 conversion to the 1940 spindles Got the inner bearing fitting flush against the shoulder and I have two sets of hubs that are supposed to be the 53-56 , they both fit the same , speedway bearing kit . The problem is the hub won't go on the last 1/4" . The outer bearing is riding on the spindle threads , drum won't go on all the way etc. I'm guessing this is the wrong hub. Any ideas? Should be super easy.