Here is a link to a post that where I listed some references for parts, and a pop off explanation for those who are interested.
I can't figure out what the link in the last post is supposed to do though[

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[link=http://www.rcuniverse.com/forum/m_1866098/anchors_1866098/mpage_1/key_pop/anchor/tm.htm#1866098]pop off[/link]