Hi I just got a 1998 camaro z28, I have an issue with it though. Its an LS1/A4 car, every time the car is under WOT the car vibrates, and when I am cruising at 70 mph plus, I read a couple of threads, and heard that if you put it in neutral and it go in WOT while at a cruising speed of 70 mph and it vibrates it can be the drive shaft. That is what happens to my car too. Any help would be appreciated.

 

it could also be bad U joints are a broken trans or motor mount.

 

U joints is that expensive to fix? Would it be cheaper to just buy a new drive shaft?

 

Mine does this when j get up over 90 but I think mine is more of a front end alignment

 

I see, does it do it under hard acceleration.

 

no, just remove your DS and have new ones installed.

 

Probably a bad U-Joint like stated before. I would take your drive shaft out, take it to a driveshaft shop and have them put new u-joints in and balance the whole assembly. That way you know its done right.

 

No vibrations really during hard accell. Just cruising there's vibrations. Your prob sounds diff than mine haha

 

U joints aren't too bad if you have a press, me and a friend did mine (my first experience changing u joints) in a few hours. Wasn't fun but it was a good learning experience.

 

I might just look into a local shop that fixes drive shafts to start shopping for prices.

 

Yeah U joint on that one! Mine has the long tubes that seem to rub and vibrate the car i gotta pull em out and dent em up a bit and check what kind they are so i know never to buy em again lol!

 

Sounds like it might be time to make sure you got new motor and tranny mounts in