Axle bearing clearance

[mindofmango]

Hello and needed advice. 63 c10 2wd 12 bolt rear. Have drilled out original 6 lug to 5x5 chevy wheel pattern. Axles are in good condition with no noticeable groove at the bearing location. C clip axle. My question is whether to replace with original bearing and seal or use one piece Timken saver bearing. How tight should the bearing be when axle and bearing are in axle tube. There is a very small amount of play when I dry fit the new replacement bearing in the original place before installing.