Hi, I have an 01 F250, 4x4. All ball joints and ends are new. Everything is tight underneath. Sometimes when I make a 90 degree turn, when it straightens out it goes hard the other way, pulling into the next lane. Sometimes it just starts to pull while going straight. I am thinking maybe the booster????? Is this a possibility or is the steering box more likely? It doesn't always do it so I don't think it is mechanical, more hydraulic. Tires are good and alignment is also good.
Thanks for any help.