I just noticed something and want to know if that's the way it is supposed to be. I have a G35 6MT, and I just noticed that the back tires, when looking at them straight on from the back of the car, don't look completely vertical. They don't look straight up and down, they actually look tilted inward a bit. Is that normal?

Or could that have happened when I curbed my right real wheel?

 

It's called negative camber, our car has it from the factory, there is a factory rear camber adjustment but its not enough to make the wheel perfectly straight. If you want to get the wheels to be straight you need to buy a rear camber kit. you can get it at performancenissanparts.com If you look at the front tires it'll be the same, might as well do both front and rear camber kits while your at it.
-GP-

 

Okay, thanks for that info. Good to know. Now, is there any NEED to really do that? What are the benefits? Thanks Gdup35Sedan.

 

PERFORMANCE Tires are designed to create optimal traction with a negative 0.5- 0.7 degree camber to precompensate for camber changes underload.

What is important is not what is happening sitting still but what happens at speed turning.

An alignment is setting suspension WRONG sitting still so that it is right rolling and turning.