I'm looking to do the same swap with a 12valve into an 89 250
I'm replacing the twin I beam crap with a kingpin dana 60, not gonna
Even bother with the 44. I'm finding that fordcummins.com is very helpful
Also I went to a couple local diesel shops for advice also found that they can get their
Hands on a motor easier than I can very helpful, but I'm using my zf 5 spd and np205 t case,
I was told there's practicaly no wires besides the basics which is good me and wires don't mix