Yep, you will have trouble with the tie rod and mounting on the cover. Several have had trouble with the cover mount causing leaks. And the Ford knucks have the tierod mounted much closer than GMs. In fact, it's so close that you can't use a tie rod of larger than 1.5" OD. I built one for a friends truck and the 1.5" OD touches the stock cover at lock. No room to plate the cover, and no room to sleeve the tie rod for a 1.75 like mine (which I had intended to do).
Edit: Best thing at this point might be a set of Deden Bear's if you can stand the $$$. Otherwise I think you will want to redo the cover. High steer on Ford knucks is a very bad option. GMs are border line, Fords are well over the line IMO. My Ford buddy has broken several Ford knucks without even hydraulic assist and without high steer. High steer loads the knucks in a very bad way right where the Ford knucks are weakest (noticeably thinner than the GMs).