Just finished. At the bar "celebrating".
It lowered the truck 3.5" measuring from the bed wheel well to the ground. 27.5" "stock" to 24". BTW, it'll probably go lower, but the axle is literally against the frame, prohibiting more drop, for now.
://i43.photobucket.com/albums/e391/Reallyslowrio/Mobile%20Uploads/20141003_190116_zps9wxatohs.jpg