hey vic. not sure of the otis seperation but normally i would look at the width of the worm gear and that should let you know which end it comes out of ie the wrong end probably will be smaller. also im assuming the ring gear is the what we call the crown wheel attached to the traction sheave(ive seen some fitters trying to remove a worm gear without removing the crown wheel!). also alot of machine require packers to adjust the backlash of the machine.
