Steering box area of K frame need welding?

ppsi said

I'm not here to argue but the previous poster clearly said to check the box mount flex while someone is trying to turn the wheel. The force to move the wheels is coming from the power assist INSIDE the power steering box and NOT from the input shaft. Different angles etc as far as where the force acting on the mount comes from so, just possibly, different, and perhaps weaker or stronger, areas of the box mount are better able to handle the forces applied.
Again, I'm not arguing other than there is a clear difference between the two types of steering in regard to where the mount is being stressed.

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It’s not the forces going into the box that move it, it’s the forces coming out at the pitman arm. There’s no lever force on the box from the input, it’s a round shaft. The force leaving the box, acting against the resistance of the wheels, is what moves the box.

This is easy to see if you watch the box while someone else turns the wheel. The steering box doesn’t move with/against the input rotation. It moves in the opposite direction of the pitman.

The force requirement to move the tires doesn’t change. Not only that, but the mechanical ratio inside the box is the same between a fast ratio manual steering box and a power steering box, both are 16:1. If you think about what’s moving the box, that means just the mechanical ratio makes the force leaving the box 16x higher than what goes in. With a standard manual box at 24:1 that means the forces leaving are 24x higher. The much larger output force moves the box and stresses the mount, not the input.