Joe Guarino

I have approx. 149k miles and feel vibration through the steering wheel at
speeds of 65-73 mph. I believe that the right half-shaft shaft is in need
of replacement. I hear a clunking noise when making a left turn. Could a
bad half-shaft cause vibration in the front end, or is it more likely a tire
out of balance or a bad steering or suspension component? Any help or
suggestions where to look would be greatly appreciated. Thanks, Joe