I think I might have a new question regarding lowering the Z....ahhh prolly not but here goes.

Lets say you have 18" rims on the front and 19" on the rear as my GT model does. I want to bring it down on Eibach Sportline springs. Will the different height of the rims allow the car to be lowered and sit as if the rims were the same height?? I'm not gonna have to lower one end of the car more than the other right?? I think it should be okay but i'd like to here what the experts have to say first!!

I'm new to the lowering game here so please bear with my ignorance on the subject.

 

Rim diameter has no effect on tire diameter.

 

You can put 20-inch wheels on the front, and 17-inch wheels on the rear if you want. No matter.