Tires: Tire cause of vehicle vibration?, inner tie rod, defective tires

Question
Hey Tim,

    Thank you in advance for answering my question. I have a Toyota Tacoma 97 and bought news tire for it a few months ago. The front about 3 months ago and the rear a month ago(same type of tires). I then moved out of town to another city about 80 miles away and had been traveling back and forth. On one of those travels my truck started to vibrate at about 60 mph, increasing in the vibration as I aproach 65, but stopped at 70 mph. My first thought was that it was the tires. I visually checked them and tightened the nuts. The truck still vibrated. I then went to a tire shop and had the tires rebalanced, and an alignment. The vibration is still there.

Could the vibration be due to defective tires or something else?

No problem of the kind in the seven years I have owned the truck. No accidents or major mechanical malfunctions. Have used the truck off road (before new tires)in mountain roads for fishing/camping trips, but no heavy off roading.

I appreciate any advice or suggestion.

Thank you,
                Neil  

Answer
Hi Neal,

There could be a number of reasons why you are having a vibration but more then likely it's in your tires it could be out of round due to potholes or lack of rotation of your older tires after you bought newer ones which will ease out wear and even them out at the sametime.Or you could have a broken belt which will really cause alot of vibrations that is due to defective tires and i've seen quite a few of those which i have replaced for my customers.I would suggest taking your truck where you got the tires rebalanced and have them to check all 4 for your problem and have your inner tie rod ends checked as well with your front tires moving from side to side and up and down for any movement that shouldn't happen .   Goodluck