[69Mach390]

Trying to reduce the vibrations in my car. There's definitely multiple sources (driveshaft was bent, replaced) now I'm working on the tires.

I get a vibration at around 35mph that's pretty bad. I just had the tires balanced an hour ago and they said the tires are a little out of round and have some flat spots.

It's no surprise since the tires are 5 yrs old and the car pretty much sat in one place for 4 of those 5 years.

Also, when I was working on my brakes, I spent quite some time locking up the rear tires getting things adjusted.

Anyone had any luck getting rid of the flat spots?

Only thing I've read so far is to max inflate the tires and drive 150 miles or so. But I've only seen that suggestion in one place and nothing to back it up.

Tires only have maybe 1000 miles on them.

 

[69Mach390]

As much fun as the smoky burnout sounds, I've read it doesn't really help.

 

[69Mach390]

I think the tire shaving only works with flat spots caused by locking up the brakes, etc.

When I had the tires balanced today, they also moved the fronts to the rear. They still vibrate at the same speed, but before it was more in the steering wheel, now I feel it more in the seat. Seems like those were more of the problem.

I also was surprised how worn the fronts were. Again, maybe 1000 miles on them. Of course a few hundred were driven while the front alignment was ridiculously off. Holy cow that can destroy a set of tires in no time. On the inside, the front tires are more than 1/2 worn down.