No toe in/out adjustability after suspension rebuild

Got it back from the shop yesterday and they did a great job. I guess I left a couple things loose (oops) and they retightened everything at no charge and aligned it. Car feels a lot better than before but it does have a bit of a dead spot in the steering box. I can't seem to get the big lock nut deal on the box loose to adjust it so hopefully I can figure something out there. Thanks for all the help guys.
Dead spot maybe a split worm gear .. defect in these boxes.