It does not take much to change the steering wheel centering. A quarter turn of a tie rod would do it for example.
I have in the past centered my own steering wheel by turning in one tie rod and the other out. 1/4 to 1/2 turn of the tie rod will equate to about a degree on the steering wheel. Use caution as the tie rods will rotate on the ball joint before the nut actually loosens. Use two wrenches and try to mark your starting point using a sharpie so you can keep track of the rotation. It doesn't take much. Be safe as well.
The bent rim thing sounds bogus. You would notice a bent rim right away by simply rotating the wheel and if you have the cast wheels, they really don't bend, they break.
I have in the past centered my own steering wheel by turning in one tie rod and the other out. 1/4 to 1/2 turn of the tie rod will equate to about a degree on the steering wheel. Use caution as the tie rods will rotate on the ball joint before the nut actually loosens. Use two wrenches and try to mark your starting point using a sharpie so you can keep track of the rotation. It doesn't take much. Be safe as well.
The bent rim thing sounds bogus. You would notice a bent rim right away by simply rotating the wheel and if you have the cast wheels, they really don't bend, they break.