1972 conversion 4x4 has a wierd steering problem

[spencer2986]

While sitting still, I turn the steering wheel left and the whole truck pretty much lifts up and it feels as if the steering wheel wants to pull back. The same goes for turning left but it dips down and wants to pull the steering wheel back. Any idea as to why this may happen. It has a 6 inch lift and the dropped pitman arm that I thought would solve this problem.