F-Series. The best-selling trucks in America for 40 straight years.It’s not luck. And it isn’t coincidence. Since 1977, F-150 and Super Duty have been the best-selling trucks for some very real and hardcore reasons: Rock-solid Durability. Up-to-the-nanosecond technology. And jaw-dropping capability. Leading the way for 40 straight years is grueling, intense and tough. Yeah. Just the way F-Series likes it.