check for worn loose tie rods, bent links, bushings can make a world of difference too especially trac bar, and if its lifted see if has had the geometry corrected (pitman drop, trac drop/ adjustable links) the steering shaft can also wear and new rag joints can help. make sure the steering box is tight to the frame. you can take play out of it too but do it last and dont adjust too much or it will have too much preload and will wear even faster and **** return to center. agr is probably the best place to get a new steering box and i think they even change ratios for larger tires. hope this can help my 79 had terrible steering when i brought it home and the trac bar bushings helped more than i could ever imagine.