Wow, what a coincidence! I'm going through the same thing at the moment. At least with the 3800, all you get at the parts houses are either outright laughter or a blank stare. My local NAPA, who has been supporting me for 20 years now on all this stuff, is sending mine to a relining specialist in Baltimore. All I have to do is tell them how thick I want the new linings ...

Yeah right.
Anyone know what the originals were? 3/8" ? 1/4" ??