Originally Posted by
GuiltyByAssoc
So which one is the O and which is the U?
19-
20-
It's different for the front and rear...your pully for the front has a different hub than the pully for the rear.
Of the 4 pullys that you should have, the 20 for the front and the 20 for the rear have no markings. The 19 for the front is marked with an O and the 19 for the rear is marked with a U.