F 150 Heritage 4WD Pickup V8-5.4L CNG VIN M (2004)
5. Remove the rear brake disc.
6. Mark the driveshaft flange and pinion flange for correct alignment during installation.
7. Remove the four driveshaft bolts.
8. CAUTION: The driveshaft centering socket yoke fits tightly on the rear axle pinion flange pilot. Never hammer on the driveshaft or any of its
components to disconnect the yoke from the flange. Pry only in the area shown with a suitable tool to disconnect the yoke from the flange.
Using a suitable tool as shown, disconnect the driveshaft centering socket yoke from the rear axle pinion flange.
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Position the driveshaft out of the way.