Phased harmonic dampening

My weight is broken, I have repaired a few times and would really like to get this permanently fixed. My guess is the repair did not match the original and the harmonics or vibrations were different. I do notice that my rear view ski mirror vibrates too much now. Thinking about balancing the propeller to improve or lessen vibration. Any thoughts?
'94 grand sport

Thanks for any information

Gerry

 

It sounds like a bent shaft or prop blade.

jim

 

Thanks, that's what I was thinking, I'll try a new prop first.

 

You could just have yours rebuilt. Spin the prop and check the shaft for runout also.