Since I have put on my tanabe nf's and my 20 wheels, I now have a bad vibration from 70-80 miles an hour.

Soon, I am going to change over the wheels back to stock to eliminate this as a problem but I did have them road force balanced.

I am beginning to think Tanabe's quality control is lack luster. My ride height is drastically different than other members on top of the shuddering. ugghggghh.

 

umm, if it's vibration at certain speed, does sound like wheel balance. you put on the hub rings as well?

 

I did. They are on every wheel.

 

I am going to put the stock wheels on and see what happens then.

 

I went back to the shop that did my road force balancing and they went over the readings. One of the tires was marginal while the other one was out of range. I have arranged to take back the Nittos and do more research.