yeah joe mig,i know that feeling!!ive found out if you have a part number they are more happy to punch it in ,,its either available or not,if you try to explain by name or description the part its just too hard for them to pull up a parts picture or microfishe,one (young)parts guy didnt even know that on older bikes a chain runs from the crank to the primary shaft!!he said "that sounds like a crappy way to do it",,,in GOD we trust ,parts blokes we question!!