Econoline E350 1 Ton V8-5.4L CNG VIN M (1999)
3. Remove the four driveshaft bolts and disconnect the driveshaft.
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Wire the driveshaft out of the way.
4. Install an inch-pound torque wrench on the pinion nut and record the torque required to maintain rotation of the pinion through several revolutions.
5. CAUTION: After removal of the pinion nut, discard it. A new nut must be used for installation.
Use the special tool to hold the pinion flange while removing the pinion nut.
6. Mark the driveshaft pinion flange in relation to the drive pinion stem to make sure of correct alignment during installation.
7. Using the special tool, remove the pinion flange.
Installation
1. Lubricate the pinion flange splines.
