Hi-
My 3600 P/U has wobbly steering, requires lots of correction and occassionally I struggle to keep her in a straight line. Very shifty and Im really afraid I'm going to veer into on-coming traffic.

Ive been told the steering boxes are often the culprit.
Three Questions:
1) Will a new steering gear box likely help?
2) Is gear box replacement a difficult job? Im an average home mechanic with no fancy tools.
3) I hear about king pins creating steering trouble - is that more often a problem with these trucks?

Thanks in advance for steering me in the right direction!
Ron A