K.I.S.S.
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One of the reasons American car companies are in long term trouble...The Ford 150 is the most popular truck in the country. People expect their pickups to be reliable and long lasting. This video details some common problems of the newer aluminium body, 3.5L ecoboost vs. a steel body, 5.0L V8.
Link to videoNew pickups cost a lot of money. They should be very reliable and mostly trouble-free until at least 200k miles. Keep it simple, build what works.