make sure you got the hubs back on tight as well as haveing the lug nuts tight.
Your power steering pump and or steering box may be about to give out on you.
Have someone rock the steering wheel back and forth as you inspect the steering linkage for loose joints.
To turn the rotary motion of the steering wheel into a linear (back & forth) motion that can turn the wheels.
Could be tie rod or steering gear problem.
Bad tire, wheel, bearing, steering component,..............
it seems that the safe and easy procedure for changing out the power steering fluid, assuming there are no other issues, is to(with engine off) remove the old fluid from the reservoir with a siphon bulb and refill with fresh. start vehicle cycle the steering wheel back and forth for a minute or two. kill engine and repeat until your heart is content(more or less).
Most steering columns will unlock once you put the key in and turn the ignition on. If you are having trouble unlocking the steering, you should turn the steering wheel back and forth with the key in.
When moving the steering wheel back and forth in a commercial truck, the component that should be turning is the steering gearbox or rack and pinion system. This mechanism translates the rotational motion of the steering wheel into lateral movement, allowing the vehicle's wheels to turn. Proper functioning of this component is crucial for steering responsiveness and safety. If there's excessive play or difficulty in steering, it may indicate a problem with the gearbox or related steering components.
The Steering Wheel lock is jammed! Gently wiggle the steering wheel back and forth as you try to turn the ignition key.
Turn the steering wheel back and forth if that doesn't work try that screw under the steering column
Did you check your tires? If the steering wheel is rocking back and forth you could have a bubble in the tire
Keep jiggling the steering wheel back and forth.