2009 Ford F150 4x4 First Drive - Ford Facts
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Let's cut to the chase. This new F-150 is available with a locking rear differential built by GKN. This electric locker is only available in the FX-4 off-road package, but there is a limited slip available in the other trim levels. The ring-and-pinion ratio is 3.15 with the two-valve 4.6L V-8 and four-speed automatic transmission or 3.31 with the three-valve 4.6L or 5.4L V-8s and the six-speed automatic transmissions. View Related Article
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