every time i turn my truck hps like its in 4wd or somethin it a 1987 zuk with 5:13 gears and idk if thats whats causing it or what i battle it on the road it swerves alot and i just noticed that when you have the steering wheel turned strait one tire is straight and the other tire is slightly off what causes this and how can it be fixed somebody help me-thx
Sounds like at least two problems.
Steering: Check to see if your tie-rod (connecting between both front hubs) is bent. It can be mostly straightened if proper force is applied. You can loosen nuts on the adjusters on tie rod and adjust the wheel alignment close by measuring distances between front and back of wheels/tires (from same spot). They should be almost the same. Only use home done alignments for off road use. Then as Wild stated get an alignment.
Hopping: If it is hopping (and popping) when turning sharp in 2WD, and probably clicking when turning in reverse, it sounds like you have a locker in the rear. This is somewhat normal behavior of lockers. As light as Sammy's/Kickers are sometimes they hold locked until tires (turning different distances) have built up significant torque in axles against each other in the differential Locker and it unloads (allowing vehicle to lurch forward), where it again starts binding up. This action is worse in a poorly adjusted differential with too much play.
Loud grinding noise in 4WD: Need more vehicle information. Does not sound normal.