So, the guy at CPP thought my new drum may be the issue, and asked today that i measure the holes, as well as try the new hub on the old drum.
In turn, I pressed out the old studs and removed the old hub. Both new and old drums are a match as i would expect.
The new hub from CPP does not properly fit in the old or new drum.
I also noticed the the inner-bearing from the original hub is about 3/8" smaller in diameter then the roller bearing in the upgrade kit from CPP. I though maybe I would just put the new upgraded roller bearings in the original hub, and mount to the new drum. No joy on bearings working...After about 15 pics to CPP, hopefully they can accept it wont work, without having a buddy with a machine shop! I appreciate the feedback and items to check...
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1948 1/2 Ton 6-volt 216