Hi,
Can't help with a rear wheel I'm afraid, but if you need a parts list and manual for the TLM 200/220, PM me your direct e mail address and I can send you one via Wetransfer
Here's a link to the T&MX rebuild, which happycyd recommends.
https://www.advrider.com/f/threads/montesa-349-engine-rebuild-guide-and-questions.1294151/
If you need a parts manual, PM me your e mail address and I can send you one.
Good luck