I didn't realize that the drag links were not adjustable on '46 trucks (actually not even sure it is on my '51 as I haven't paid attention to that part yet).
But unless you either change the position of the pitman arm on the steering sector shaft, or change the length of the drag link after centering the steering gear, the wheels would still not be straight given the OP's description. That assumes that the steering is hitting the stops at the knuckles on one side.
I also don't know if the pitman arm can be installed to the sector shaft in a different position or if they have a blind spline for alignment. A blind spline is the way it's taken care of on modern iron.


Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.