There's no reason why this kit wouldn't work on a 2018 F150 with a 157" wheelbase. Whether this kit is a good choice depends on a variety of factors (i.e. what kind of ride quality you want, what kind of off-roading you're planning to do, what size tires you're trying to fit, etc.). Your best bet would be to give us a call directly at 623-434-5277 so we can get more specific about what you're looking for.