IMPORTANT! Let's say you're doing this in a couple of sessions, like I did. And you go to line up the connecting rod to the levers and you're OFF BY ABOUT 1/2"!! Do not despair.... flip the rod over; the part that sticks up the connects to the flap push rod should be on the right, not the left!! Doh! Thankfully, Gary caught my error before I ripped everything out and redid it!