High-speed vibration

I drive a 1997 Toyota Corolla and it has 132,000 miles on it. When I get it up to about 60 it starts to shake and vibrate until I take it up to about 75, then it goes away. If I go past that to about 85, it starts doing it again but a bit worse. My mom thinks it’s tires/alignment but I think it’s suspension. Who’s right?

Well…let me get my crystal ball…

It could be one or the other or some of both - esp since alignment/suspension are completely tied together.

Just take it to a good, local front end/alignment shop. Ask them to inspect it and balance the tires.