Hy Lovett, disconnect the pitman arm from the steering box, now center the steering box, do that by slowly turning the steering wheel in one direction until it stops, now mark the wheel with a piece of tape or something, now turn the steering wheel slowly in the opposite direction counting the number of turns until it stops again. Now you know how many turns or portions of turns your steering box is lock to lock. Turn the steering wheel in the opposite direction half the number of turns, now you have the steering box centered. Center your front wheels [ straight ahead] now try to attach your pitman arm to the steering box, if it won't attach because of a master spline problem you will have to adjust your tie rod ends until it does go on in that position. That should give you equal steering in each direction, hope that helps.
