yea there are a couple that deal with it. i have done a tutorial on it and have it on my website. i could post it here but i think it would take up to much space..
anyway heres two of the posts that deals with muscle machines
http://tinyrc.com/forums/showthread....7800#post87800
http://tinyrc.com/forums/showthread....9178#post89178
and heres the link to my tutorial
http://custombitbodys.home.attbi.com...monstermod.htm
good luck. take some pics and show us when your done...