ill be honest. if someone says these engines are hard to change the oil and drain pan is to small and oil spooges everywhere, its rubs me the wrong way because i know better. with some thought (very little) and simple enginuity (small piece of cardboard like puzza box any other small flat piece of material laying around the house to hold between draglink and funnel opening) you hardly spill a drop.
when the filter is fully unthreaded dont pull it off the block or you get a big rush of oil . keep light pressure and tilt it slightly or just barely pull it away from the block. now the big gush is a managable small stream right into the funnel and into your drain pan
ive found these 6.4 to be easy and mess free. try changing a toyota 3.4 upside dow filter and not dump it on your face