Is this going to be a problem? Maybe the good Dr. can chime in?
Thanks

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I dont have the transmission knowledge like Dr evil, but .03mm is equal to .001 thousandth of an inch. which is about a 1/3 of a human hair. I highly doubt the difference will effect much.

But I am using my experience with machining and tool building, not engine or transmission building.

Pete

After thinking about this more last night, the small amount of wear shouldn't cause any problems with the input shaft seal

I'd crosshatch it with 1500 grit

I put mine in a lathe and spun it with a 3m pad to clean the surface.