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Do some more checking, the T/O bearing Keisler uses fits in the torque converter hole on the flywheel.



Also, all the 90's dodge trucks with a manual transmission used the bearing that sits in the torq converter register on the crank. It's common to use this bearing on 440's and such with cast cranks that don't always have the pilot hole drilled. Perhaps you can find a bearing that will work. If not I would have your input shaft turned down on a lathe to regular mopar size so you can use the 90's pilot bearing or a stock type pilot bushing.