i suggest staying away from flexalite, ive heard about them burning up i'm gonna go with a factory taurus 2 spd fan, and the ford 2sp controller from Delta Current Controllers, from what ive read, they seem to be the best, but the guy hand makes them to order, so ive heard of it taking a few months to get in the mail if hes busy
i've heard about the troyers having bad controllers all the time. i had a flexalite in my 90 ranger for like 2 months before the truck got wrecked and the fan had always worked fine. now i'm thinking about putting it in my tracker/mudder. i've also read about the taurus fans melting wires because of the high startup amperage. i guess there's a drawback to everything
there is a bunch of guys with e-fans on f150online, it takes some bucks and some patience to get them installed and the whole nine yards, caust most the fan kits you buy dont come with thick enough wire, and almost all of the relay switches go bad, i know flex-a-lites are good, because my bud has them on his drag car!! ive done a little research on them