I had the wandering steering lane to lane on the freeway, came to find out it was a combination of a lot of things, I replaced the steering tie rods etc with the new updated parts, all the ball joints with greaseable ones, added the steering box support, and had the front end aligned. It corrected a lot, but I still have some wandering, you have to really work on driving, so I had the wheels rotated, that helped a little. I have Nitto Terra Grapler 305-70-17 tires about half worn, I am beginning to suspect the tires are the problem, or it may be the Steering Box ?. or the steering shaft, When parked, and running the slop in the steering when moving the steering wheel appears to be tight, it's hard to be sure, any ideas where to go next?, I am sort of getting tired of rebuilding this truck after only 54000 easy miles, I plan on keeping it for 5 more years, it's very doubtfull a new Dodge will be the replacement.