Looking for some advise. I recently replaced rear rotors and calipers, all struts (KYB), and new tires. Rotors were checked for balance,tires balanced three times, and struts appear to be fine.

I feel the vibration around 40mph and it is very noticable at 65mph. I feel it in the sterring wheel and the seating postion.

I first noticed the vibration after the calipers and rotors were replaced on the rear, but the same day I found a strut was bad. Then the cupping of the tires was noticed and they were near the end of their useful life so I replaced them. It seemed logical at the time but now I now I introduced too many changes to narrow down the problem.

Any help would be greatly appreciated.

 

4 new tires or an alignment , or both

 

Even thought the alignment has been done I think it is worth a try to take it to Nissan to ensure it was done right. I will go there before the end of the 30day trial period for these tires. I just really doubt it is the tires. I moved the fronts to the back and the same vibration is still there.