I am hoping someone can set me on the right track here.  Tearing down to fix a leaking front brake caliper I found an outer wheel bearing problem.  The race can be spun in the wheel hub assembly.  I popped the race out and a micrometer shows the correct size outer wheel bearing was installed (outer diameter 1.781), so I assume this must mean that the hub is worn. 

Ive never seen bearing race to hub tolerance' anywhere, its a interference fit, can't be much tighter than the race o.d., I've found through the years that if you have to drive the race out of the hub with a brass drift and a 5 pounder and maybe smacking your hand from a glancing blow along the way  that the hub should be ok, BTW, I always hold the drift with vise grips now.,   

anips2009-06-16 18:51:06

LOL!  I guess I just dont't have enough interference in the fit anymore...I hate it when that happens! 

Check with Larry at Corvette Specialties as he had a good rebuilt one for my 70.

what you might try before you get another hub is take a center punch and peen the sides of the race seat wall on the hub all around several times, maybe that will get the seat wall to grow  enough so the race fits tighter in the hub, if not you had to get one anyway.

Thanks for the suggestions T-mans and Anips.  After additional research, some more facts about wheel hubs: the wheel hub design on my '68 was built from '65 to '68.  '69 and after a larger spindle was used and bearings are different.  '63 and 64 will work on '65 thru '68 as bearings and hub design are the same, only difference was the rotors were not riveted on in the earlier years. So these additional years will work, but not if you are running for points...   This info from Muskegon Brake, Muskegon MI, a guy there named Andrew was very helpful. 

I agree with Anips, To use a pointed punch all the way around the inner hub (5 or 6 dimples) will work fine. When I did mechanic work years ago, we did this quite often. It works great! This will work for years, but if ya want to replace, it will get ya back on the road till ya find a replacement. Later,

Thanks Madrider...  appreciate the suggestion.