Bad tire/radial pull alignment question?

[HOGEYE]

2002 GMC Yukon was pulling pretty good to the right side. I thought it may be a radial pull on the front passanger tire so I decided to swap the front passanger tire with the drivers rear. Afterward, the truck still pulled to the right.

Took it in today and got the alignment adjusted. Test driving, it still pulled to the right so they rotated the front tires and it then pulled to the left. They said it was a bad tire.

I told them to swap the drivers front with the passanger rear and it still pulled left. Lastly they switched the front tires and it now pulls right again.

They now tell me I have potentially three bad tires. I have goodyear wranglers with about half tread on all tires and don't really want to buy tires if I don't need to. It doesn't sound right that I would have 3 bad tires.

Any thoughts?

[Jeremy airjer W]

Yes it does.

To check for a radial pull you want to swap the front tires only. If the pull goes away or pulls the other way you have radial pull. Swapping the a front for a rear just confuses the matter.

[fishing tech]

What Airjer said.

[HOGEYE]

Well I just swapped the front tire that pulled with the tire behind it and no longer pulls.