Friends I recently did a rear wheel bearing on my 09 gt and there are those elongated washers that position those bolts and arms.
The left side had one on the top arm thinger that goes to the knuckle and one on the bottom front arm.

The right side only had two on the bottom front arm.

So what's the real deal there?
Should a guy buy extra washers and put them on every hole that looks like it will take one?
Have anyone else ran into this?

That bearing going out ruined the tire on that left side.
I only did the other because if one goes they both might be ready.

I am going to do the front bearings as well this winter.