Originally Posted by
smashndash
I think you're giving me too much credit here. I didn't realize there was a two spacer system out there. But from some quick googling, I infer that you have a 9/10 speed Shimano freehub:
Notice the notching on the "wall" of the freehub. I believe the notched spacer is supposed to go first and interface with those notches, to turn the freehub into a 10speed freehub:
Notice the smooth wall. The 1mm smooth spacer interfaces with this smooth surface. Then, you slide your cassette on. I'm not sure what you mean by "in front" or "behind". But my opinion is that the order when installing is: notched spacer (with notches facing towards the center), smooth spacer, then cassette. If you have shifting problems at this point, it could be that your limit screw was set when the spacers were in the incorrect configuration.
Thanks for taking the time to do a bit of searching. I appreciate it.
I currently have the hub set up as you describe. Notched spacer followed by smooth spacer followed by cassette. I thought this was the way the spacers came off the freehub. My thinking was to reverse this. But now, base on what you're writing, I'm second guessing myself. I'll also take a closer look at the freehub.
I don't think have rebuilt the cassette improperly with spacers as the chain shifts smoothly between the cogs. It's just the final, largest one that is giving me issues.
When I first put the wheel on the bike, the chain wasn't even seating in the largest cog. The chain was just riding up above on top of the teeth. It was only after taking the cassette off, re seating it, and tightening the lock bolt that the chain and teeth lined up.