ZF's are tried and true.... Not big on their low gear, but look at the company of people reading this post! An absolutly great rig from the factory! I had a ZF behind a 460, and it dominates the v-10 lineup I have encountered. My trail towing rig went from a 95 zf 460, to a v-10 (for 3 months), then I traded to a 2008 5.4 supercrew f-150! I love my f-150, way more than the v-10, but pulling, that zf was a Monster! I want a ZF 5.4 with the A-arm handleing like my supercrew! Motorswap? I doubt it, but good buy to you just the same!