Have it rebuilt locally. My 1959 RB383 starter failed. I went
to my local parts store (The old fashioned kind with a machine shop on
premises.) And he sent it to a shop he'd been dealing with for
years. Three days and not too much money later, I had it back, with all
the correct tags and labels still intact, and a new solenoid switch installed,
too!
Joe
Savard
Lake Orion, Michigan