Last night I was about to install a new UR Pulley as I was reading the guide on 350z tech, this one=http://www.*********.com/zwiki/Pulley_Installation.

On step ten it says that I need to check that it has that special sleeve on it, well when I checked my stock pulley and I checked the UR one that another forum member sent to me I couldn't find the tapered sleeve.
Does anyone have an idea about what they were talking about? I looked and couldnt find anything.

 

The back of the UR pulley should be a different metal [steel] than the rest of the pulley [aluminum], and it will have a slightly rounded edge. Just look up pictures on the UR website and make sure yours looks the same.

 

Here's a picture of the front and the back of the pulley if it helps.

 

UR pulleys have the stainless sleeve. Cheaper knock-offs don't have them but they can be added.

 

So i'm guessing mine doesn't have the sleeve?

 

show us a picture up close in higher resolution but at an angle so that we can see the angled view of the back.