* Tie rod ends: These connect the steering linkage to the wheels. Worn or damaged tie rod ends will cause play in the steering and a wobbly wheel. This is a very common cause.
* Idler arm: This component helps to reduce stress on the steering linkage. A worn or damaged idler arm can contribute to a loose and wobbly feel.
* Pitman arm: Located on the steering gearbox, this arm connects the gearbox to the steering linkage. Worn bushings or play in the connection can cause wobbling.
* Steering gear box: The steering gearbox itself could be worn or leaking, causing imprecise steering and wobble. This is a more serious and expensive repair.
* Ball joints: Worn ball joints in the suspension will affect the steering, making it feel loose and wobbly.
* Wheel bearings: While you mentioned replacing the *steering column* bearing, you haven't mentioned the *wheel* bearings. Worn wheel bearings can contribute to wandering or wobbly steering.
* Power steering pump or lines: Although less likely to directly cause a *wobble*, a failing power steering pump or leaky lines can lead to a lack of power assistance, making the steering feel loose or heavy.
Troubleshooting Steps:
1. Visual Inspection: Carefully inspect all components mentioned above. Look for any obvious signs of wear, damage, or leaks. Pay close attention to the tie rod ends, idler arm, and pitman arm for excessive play.
2. Check for Play: Grab each component and try to move it. Excessive play in any of the components is a clear indication of a problem.
3. Professional Inspection: If you're not comfortable performing these checks yourself, take your truck to a qualified mechanic. They have the tools and expertise to diagnose the problem accurately.
It's crucial to address the steering issue promptly. Driving with wobbly steering is unsafe and can lead to accidents.