I love the Windsors - cheap and easy to work on. Never had trouble with them except when I really pushed them passed their limits.
Yes, and it seems their limits are exceeded in trucks fairly quickly, especially the 5.0L. Timing chains wiped out at 80k miles, crankshaft thrust so bad you can SEE it, and rod bearing/wrist pin bushing rattles at hot idle.
Our fleet work, way back when, was dominated by Ford trucks and vans. The V8s always broke, the I6s never did. And when I say never, I really do mean never. Nothing. Spark plugs, cap/rotor/wires, oil and filter changes. That is it. Heck I do not even think we ever replaced accessory belts or water pumps or anything on them, as I don't think that 4.9L could spin fast enough to inflict any serious wear on that stuff.
We serviced hordes of the old 1974-1991 (the boxy square ones) E250 vans, with I6s bolted to C6 transmissions. Loaded service vans. Nothing broke on those. We still service many of the same companies' vehicles, and have watched the E-van evolve, and finally get replaced... and the Transit has caused some of them to go elsewhere besides the Ford dealer for the first time in several decades. They've stomached the rod-chucking 4.2L V6 that replaced the 4.9L, and the subsequent switch from the big truck transmissions to the little car transmissions and their rando-fail short life, they've stomached the Triton engines (later made standard on all the E-vans) spitting out spark plugs and rampant consumption of 5w20 oil... but the Transit... that is a new level of Fail that the Blue Oval should be ashamed of. Granted much (most) of its issues stem from the all too common poor Americanizing of an otherwise decent European platform (gasoline V6s, passenger car automatic transmissions), but the fact that you cannot even SERVICE the transmission without MAJOR surgery that involves cutting, torching, and welding, is absurd.
At least when those transmissions need something in the F150s, you can actually GET to them.