Pimp350z03

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?

plumpzz

iTrader: (10)

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

yellowlady

iTrader: (1)

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.

Wired 24/7

iTrader: (2)

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)

smokedout350z

iTrader: (3)

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

plastiketa

iTrader: (14)

+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.

f00man88

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.

RedBullRR

iTrader: (7)

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.