Re: 70 F 250 Steering
Whoever rebuilt the gearbox would adjust it too. Raise the front and with the engine off, try to turn the wheels back and forth, They should turn fairly easy. If it's hard to turn, disconnect the linkages to see if you find which one is tight. If all is okay, that should rule out that portion. Caster is what brings the wheel back to center. That link I posted helps to be able to add caster to the alignment. There realy isn't a way to set the caster on the older systems otherwise.