Just did mine, take off the AFC and fuel plate and use the calipers before and after through the top of the pump, much more accurate. Install the springs through the plug in the side.
I'm a new member of the "no shim" club. The only shims I had were on the big spring you leave in.
Be ready to turn your idle down after the install. Loosen up the lock nut, start up the truck, put on a set of earmuffs before you dive into the enginebay whith it running, turn the adjusting screw until you get it back down, then lock it down.
Last edited by dezzrats; 06-22-2011 at 02:31 PM.