recentering steering wheel after 6" lift

[76stepsidechevy]

The steering wheel has always been a little off in my truck but I replaced sagged old 4" front springs with new 6" springs and now its way off. ive tried to adjust the drag link but im out of adjustment and the wheel it still 70-80 degrees off from center. Can the pitman arm be reclocked or does it only go on one way? whats the fix for this if not? The truck already had the 4" radius arm installed and the place I got the springs from told me the arm is the same between the 4 and 6 inch kits.