Although I don't have their phone # or website address, try searching for Push Industries. They specialize in rebuilding shocks, and quite often have older parts that many people can't get. If you aren't able to get them, and can't get them through the LBS, give me a shout and I can look through a dealer here in Maine. I have worked a couple of times with a dealer here this summer(I'm not a Trek dealer either) Good luck!!

It might not be a bad idea to buy a couple sets of these once you are able to locate them. Generally small parts become much more difficult to find once they become 3 years old, and thought this might save you trouble down the road.

In the meantime, I'll keep searching here for more info on Push Industries.