Hey i recently got a 03 Z and everything i get to around 90 miles on the highway the inside starts shaking and the shift **** starts vibrating like crazy any suggestions on what this might be?

 

yeah, ur actually traveling back in time, but ur flux capacitor may be low on juice. Wait for the next thunderstorm.

 

my car came with these wheels and i have the same problem. i will get new tires in a few weeks, and i will have the shop check everything. pimp, please keep me posted as to what the cause of your problem is.

 

1. Wheels/tires may need balancing
2. Wheels may require alignment
3. If you are getting more vibration while braking, you need new brake pads/rotors. (or possibly could resurface your existing rotors)

 

maybe wheels are bent.....mine was and steering wheels shakes

 

+1 on these suggestions!

I'd check the wheels/tires balancing first, though then check the tire wear. They may be worn out differently, ie feathering. I had a similar problem on my daily driver vibrating at 65+ mph and it was due to the tire wear.

 

Make sure you take it to a shop who has active road force measurment, it might not be a balancing issue but a roadforce issue as well. Just throwing that out there as another possible cause. Goodluck.

 

Wheels need to be balanced. Had this problem when I got my rims installed. Turns out they put wrong weights and they flew off on the highway. After they re-did it with the sticky ones, all is well and I hit over 90 and am lowered.