Here is a old post on fixing the mirrors but it also shows how to get them off (hehe, he said get them off) the truck.
http://www.elcovaforums.com/forums/s...hlight=mirrors scroll to my post and pics for the info.
P.S. Some will say you do not need to remove the window/mirror control panel with the putty knife and just disconnect connectors after the door is loose the but I just went with what the service manual suggested to do, just a FYI.
Hope it helps, Easy Ed