Anyone have any idea why the parts diagram calls for
This guide pin on the bottom of the non brembo caliper
http://www.courtesyparts.com/images/...139-Z33003.jpg

and this pin on the top?
http://www.courtesyparts.com/images/...140-Z33002.jpg

I bought a replacement with the rubber boot, parts guy said they were all the same (original one didn't have the rubber boot) but now I'm getting a brake rattle. I did a complete brake job at the same time so narrowing down the culprit is a little difficult but from what I can tell, it's either something to do with the play in the guide pins or the lack of shims that came with my HP+ pads.

 

The '07 service manual shows boots on both pins with a note that says "Apply rubber grease."

 

Yea I have an 04 and the 04 service manual doesnt show any boots on them. I guess I could just replace all of them with the Booted ones since theyre pretty cheap.