The '56 Fleetwood needs a new or rebuilt harmonic balancer. I got the crank bolt loose but discovered that it stuck again after a half a turn or so. I ended up spending over an hour rocking it back and forth until I finally got it out. The bolt is stipped and must have been put back in that way years ago.
My question is, what do I want to clean up the threads in the crankshaft? A blind hole tap, thread chaser, ???