September U.S. sales numbers show both Ford (NYSE:F) and Chrysler pickups outpacing the overall market, while GM's (NYSE:GM) trucks fell well off the pace. What's going on here? Motley Fool analysts Rex Moore and John Rosevear go under the hood for an explanation in this edition of Motor Money.

Fool contributor John Rosevear owns shares of Ford and General Motors. Rex Moore has no position in any stocks mentioned. The Motley Fool recommends Ford and General Motors and owns shares of Ford. Try any of our Foolish newsletter services free for 30 days. We Fools don't all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.