Got my enkie RPF1’s in 18x10.5 15mm off sets. And my Bridgestone RE71r’s in 275/35r18’s mounted.

But they won’t mount. They are hitting this bolt on the brake disc. Wtf is this and why is it even there?!

 

It's to push the rotor off if it rusts to the hub. Back the bolt out, remove the spacer and run the bolt back in. The spacer is there to allow you to "store" the bolt there.

 

Huh... That’s a new one. I’ll check it out tomorrow. I already lost light.

I was going to lose my mind if I ordered the wrong wheels or needed to buy new rotors.

 

Nope. You can toss it. Just remember, the bolt is an 8mm x 1.5 in case you ever need to push the rotor off.

 

 

Interesting. I thought that stud was there as a kind of 'designator' for the front wheels only, so as to not confuse the front wheels with the rear wheels because of the staggered set-up......?

 

That's possible as well. Dual use.

 

There is a 10mm wrench in the trunk with the spare tire stuff just for removing this bolt

 

So THAT'S what that's for.. Never knew that

 

You are very correct; this is the primary purpose of the stud.

In 2003 (when the 350z was introduced) cars with a staggered setup were more expensive exotics. Nissan did this to prevent tire shops from mounting the wheel/tires incorrectly (i.e., mixing up the front and rear setup).

 

Like I said, dual use. Nissan actually advises techs to use this to push off stuck rotors. They even tell us to use hand tools only, no power tools, so you don't snap the head off the bolt.

 

Same here. I knew the bolt was for maintaining the tire stagger (IE: keep people from putting the wrong wheels on) but never knew what the little wrench in the kit was for.

FYI I guess I should have kept mind on because I actually had a tire shop put the wrong wheel in the front once you would think the size alone would be a big enough clue. Tech even admitted things "looked wrong" on the car but let it go out the door

 

Good information... Thank you. --Spike

 

+1 I replaced one not knowing I could use this. It took a short handled sledge to knock it loose.