Got my machine up and running. only issue is that I'm missing the nut/pin to change the machine to low gear(there is a pin in there as the large gear is locked to the spindle drive pulley. I've looked at the Grizzly parts list that was listed earlier looks like there is a spring and nut that are supposed to pull in a pin that locks the drive pulley to the larger drive gear part 119-123. How does this work? the pin is threaded spring holds in the pin? is the cotter pin just a detente for the flat nut? I want to learn some threading but don't want to start in high speed. Also not looking forward to having to pull the spindle just to see how it is supposed to work. any close up pics of a PY would be great I'm worried that it may be a little different than the P due to the spindle size being different. The pin parts for the Grizzley G9249 are cheap. Maybe I should just order them and dive in.