2 questions, lift and steering

[cochino12]

I did some searching and couldnt really find what I needed so I thought I would ask again. The steering on 85 3/4 4*4 (origianlly 1/2 ton) wanders a lot but mainly at speeds below 40 mph. It does wander a bit at higher speeds but Its not as noticable. I have checked the frame at the steering box and there arent any cracks, it does have dual steering stabilizers but they look pretty old, also the truck has what looks to be 6" lift springs in front and only 4" block in the rear. Could the problem just be a bad steering box?


My second question is about the lift in front, can I just remove one of the leafs to make it sit level? I would rather lower the front a little than lift the rear.