A ball joint going bad.
Most likely the front squeaking while turning is a brake issue. If this is the case and it is left uncorrected, you could be looking at a very expensive brake job.
could be the power steering belt, axle going bad. power steering pump it self could also be bad.
ball joints or tie rods
A bad bearing can cause can the front end of car to make a squeaking noise when turning steering wheel either direction. It can also be caused by bad suspension.
ball joints upper and lower control arm
Most likely it is low power steering fluid. Check fluid and see if noise goes away.
If your truck is 4WD it could be in the Constant Velocity (CV) Joint. If not it could be the wear indicator in the front brake caliper. Best to take it to a mechanic, as it could turn into a major problem if left too long
te alternaor belt may be slipping causing the squeaking as it returns charge to the battery
Ball joints.
Check the ball joints. If they are dry grease them. If the ball joints are good try looking at the stabilizer bushings and the links. Greasing these will fix the horrible squeaking coming from the front end.
The squeaking is caused by friction between two objects that only contact each other during the turning motion of the car - in this case, in the leftward direction. This is an easy fix - stop doing it.
It could worn out wheel bearing.