Hey BC59...
Yes, that is my goal... to upgrade to hub's that use roller bearings instead of ball bearings. It is because of the ball bearings that I need to replace one of the spindles which need to be done before tackling the hubs... Can I ask what year hubs you are using on your 1960 c10 spindles? I understand you can use 62 to 68 hubs.
Thanks, Russ