It would probably be simpler to replace the distributor if the shaft is galled, but it only takes about 15 minutes to take it apart and confirm what the problem is. When I was running a shop I'd fire a mechanic who asked for help inspecting a distributor shaft, but that was 40-something years ago.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!