Vague Steering, How to improve?

Post 2 says it all. You have a lift . If the tires are hanging it is harder to find the play. I like the weight on the ground. It make any play show easier. On my Dart I found a bad steering shaft to box coupler. Then found my Box loosened and was moving. Lastly I did get some play out by adjusting the box. All this after I changed Bushings and all Balljoints and steering linkage. Good luck.