I recently bought a 1991 pathy 5 speed. It has a 4" body lift with 30x9.5 tires. I immediately noticed on the highway that my steering wheel allowed for roughly 10-15° of play and when i wasnt holding the steering wheel on either side of the "slak/play area" the truck would do a sort of death wobble. The wobble would start slow and progressively become aggressive and would only be relieved by me releasing the accelerator. Also, when i let go of the wheel it veers to the left. If anyone has any ideas please let me know. Ive only been working on vehicles for about six months and never worked on suspension/steering.
