2015 JKU wheel stud and rotor

P

PD Monkey

New member
I had my front wheels off my new Jeep and noticed that the wheel studs are smaller than the holes in the rotor. So the studs move back and forth in the rotor holes. It looks about an 1/8" size difference. That didn't seem right so I took apart the other side and it is the same. This can't be right???

The wheel stud have a beveled end, the back of the rotors are also belved on the inside. But the sizes are different. At first I thought the rotor wasn't seated corrrectly, but the back face of the rotor is on the wheel bearing plate.

Has anyone seen anything like this?
 
PD Monkey said:
I had my front wheels off my new Jeep and noticed that the wheel studs are smaller than the holes in the rotor. So the studs move back and forth in the rotor holes. It looks about an 1/8" size difference. That didn't seem right so I took apart the other side and it is the same. This can't be right???

The wheel stud have a beveled end, the back of the rotors are also belved on the inside. But the sizes are different. At first I thought the rotor wasn't seated corrrectly, but the back face of the rotor is on the wheel bearing plate.

Has anyone seen anything like this?
Click to expand...
Nearly every vehicle on the planet is like this. The wheel lug nuts tighten down everything.
 
PD Monkey said:
I had my front wheels off my new Jeep and noticed that the wheel studs are smaller than the holes in the rotor. So the studs move back and forth in the rotor holes. It looks about an 1/8" size difference. That didn't seem right so I took apart the other side and it is the same. This can't be right???

The wheel stud have a beveled end, the back of the rotors are also belved on the inside. But the sizes are different. At first I thought the rotor wasn't seated corrrectly, but the back face of the rotor is on the wheel bearing plate.

Has anyone seen anything like this?
Click to expand...
Normal, ghost rider.
 
Most cars have a set screw that holds the rotor in place. First Jeep I have taken apart.

I meassured it all out...

Stud .5" (12.7mm)
Wheels .60" (15mm)
Rotors .64" (16mm)

I also checked the rear studs and they are the same size.

It just seems like it would eventually wallow the wheels or sheer the studs.

#keepyourlugstight
 
PD Monkey said:
Most cars have a set screw that holds the rotor in place. First Jeep I have taken apart.

I meassured it all out...

Stud .5" (12.7mm)
Wheels .60" (15mm)
Rotors .64" (16mm)

I also checked the rear studs and they are the same size.

It just seems like it would eventually wallow the wheels or sheer the studs.

#keepyourlugstight
Click to expand...
newer Jeeps have a set screw, but most older Jeeps do not, the rotor bore is hub centric and centers the rotor on the hub, unless the lug nuts are not properly torqued, no risk in wallowing the wheels or sheering the studs.

If the bore on the wheels is too big, I always use hub centric rings to center the wheel and keep things from wanting to shift about.
 
PD Monkey said:
Most cars have a set screw that holds the rotor in place. First Jeep I have taken apart.

I meassured it all out...

Stud .5" (12.7mm)
Wheels .60" (15mm)
Rotors .64" (16mm)

I also checked the rear studs and they are the same size.

It just seems like it would eventually wallow the wheels or sheer the studs.

#keepyourlugstight
Click to expand...
Dude, someone has done this math and R&D’d this shit already.
 
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