I picked up a Trek Y11 back in December, knowing the rear pivot bushing was a bit worn, and a little sloppy - and also knowing these aren't available. On the bright side, I got a very nice little bike for not much money.
I did find a pivot bushing for a Fisher Sugar, and took a chance that it was either the same or close... and I got lucky! Same all around, just slightly longer. Got out my grinder, finished it off with the file, and voila! It's much, much better now, a lot less slop than before.
[Edit] the bushing I used is for a Fisher Sugar, "Pivot Axle Bushing", I got it from pedalon[dot]co[dot]uk, their reference number is
W200091. Maybe this can help someone in the future looking to replace the pivot bushing for any Trek Y11, Y22, or Y33 (it's all the same frame).
