ATI overdrive super-damper installed. Man this thing was a PITA. It is press on but the keyway doesn't extend out to the end of the shaft. So only thing I could think of was to eyeball the keyway on the pulley when I started it on the hub. Used the old pulley to properly clock the oil pump. Lightly tapped on the pulley to get it started on the crank and then cut the big thick washer off of an old crank bolt so that I would have enough threads to use the bolt to pull the pulley on.