Took off and disassembled my rear calipers last Friday and dropped them off for powder coating. I just realized each caliper comes with two different guide pins: one with a cutout for a rubber gasket, the other without. I didn't pay attention to this during the disassembly because they were covered in grease and I simply assumed they would the be identical (as with every car I've ever worked on).

I don't currently have an active subscription to AllDataDIY, so hoping someone can guide me as to where the one with the cutout/rubber gasket goes? Top or bottom? Or, is there another way to identify where each pin type goes? Thx

 

The pin with the bushing is the lower pin, the one without is the upper.

Jeff

 

Thank you!!! Any idea what purpose that serves?