Front end-You do not have to remove yours though, Just lift the front end and crank till you have 1/2" between the bumpstops
http://www.xterrafirma.com/index.php?name=PNphpBB2&file=viewtopic&t=4667&highlight=\

Rear end
http://www.xterrafirma.com/index.php?name=PNphpBB2&file=viewtopic&t=5257&highlight=