I have a 2001 Sentra SE that I recently got new tires for on 16" manufacturer's rims. After the tires were put on, the car pulled to the left so I got an alignment. After the alignment, it still pulled left and the steering wheel vibrated at above 65mph. The tire shop switched my front tires (R to L) and rebalanced my tires and checked the rim balance. After the tires were switched, it pulled to the right so they thought that the tire was bad. So they replaced the tire and rotated back to front (in case it was an uneven rim, it would now be in the back). This did not solve the problem. They also double checked the alignment and the balancing. So after all this, it still pulls right. Any suggestions, ideas?
I will note that I had about 30K miles on the car and outer most tread on the front tires was practically worn off. However, I didn't notice pulling with the old tires, but that doens't mean it wasn't there, but it did previously drive smoother on the highway.
Thanks.