Posted for "sqpilot@earthlink" <sqpilot@earthlink.net>:

Marc....thanks for the reply. Unfortunately, I have a Ross PSRU, so unless I remove the PSRU, I wouldn't be able to see the keyway.  Fortunately, I tried to mount my pulley in all 4 possible orientations.....It only fits one way, as Finn suggested.  However, it's nice to know about the keyway as well, for future reference.  Thanks again. Paul Conner