Originally Posted by bobinyelm
I don't believe so.
One COULD perhaps shim the steering box away from the frame slightly, though this doesn't seem wise.
It would only offer adjustment in one direction.
This is a design flaw IMO for cost and simplicity.
I guess you've not corrected the problem yet??
I also don't see you mention to remove, and remount the steering wheel (similar to the idea of the pitman arm) to re-center the steering wheel itself.
I'd NOT shim anything, or move anything (as you mentioned loosening u-bolts and moving the axle) to simply center up the wheel or gain alignment correction.
As a last resort, you can always weld in an adjustment on the center link (from pitman arm to passenger wheel), just as the link has for toe-in alignment. It's easy to do, just scary if not done correctly due to possible breakage or separation.