Don't forget the transmission. It needs a much larger cooler than the stock one, way more than double stock. Find a long Super Duty cooler, from the early 2000's, the long version. That will fit in the front a little lower than the stock one. Install a temperature gauge too, keep the temps under 175 or so if possible. Add at least one external filter, I'd suggest two in parallel, one simple inline filter, and a bypass filter with a .060" restrictor in the line. I think that's the required hole size, thos filters are not made for full flow, it takes multiple passes for all fluid to go through them, because they remove everything down to 2-3 microns. With that you could replace the filters about once every two years at the most, longer if the ATF is premium and not getting dirty.