I have a 89 GTA 5.7L. Like all third gen guys, I like to drive fast(that is what the car was intended for). When I get to about 90-95MPH the car starts to shake a good amount. I mainly feal it in the wheel and center counsil. Has anyone else experienced this? Has anyone found a cheap way to fix it?

Thanks Brian

 

is your tranny mount good? mine was crap when i got my car, and going down the highway after I put it in I hardly knew the car was running. (that was before the new exhaust :-) )

Josh

 

How recently were your tires mounted/balanced? if you're confident they're balanced correctly, look into an aluminum driveshaft.

 

I had the same prob. I replaced my center link and tie-rod ends (worn to hell) and the situation was resolved.

JD

 

Well you already have a stock aluminum drive shaft, so you can probably rule that out... check the tires like was said above.

 

Thanks, I will have to look into all of these.

 

Also: Don't forget: Even if you replace all these components, there is still the "road resonance" factor. When the vibration harmonics of the road match that of the suspention you get shaking (usually light) in the front end. It happens in every car and is normal. It usually happens around 70 to 75 mph, and if you keep accelerating it stops. My 86 vibrates from 75 to 80 but is fine from 0 - 75 and above 80. Just a thought.

 

thats true man, same thing with my car at time, but also remember cops don't fall for that excuse :-) LOL

 

Right! I just drive 90 and blame it on the road. Cops? What cops?

 

Why would he have a stock aluminum driveshaft?