The Stovebolt Site Forums The Parking Lot Tons 'o Fun Driveshaft center bearing replacement options?

Has anyone replaced this part on their 1950 Chevy or GMC 2 piece driveshaft?

http://flic.kr/p/e8fYRg

The rubber surrounding mine is shot. I bought the replacement in the Classic Parts catalog, but of course the bolt holes don't line up, it's for a later model, I can't use it.

http://flic.kr/p/e8mDZ9

Anybody know where I can order the correct part?

Thanks
Dave