Econoline E550 V10-6.8L VIN S (2003)
19. Position the new pinion nut.
20. CAUTION: Under no circumstances is the pinion nut to be backed off to reduce preload. If reduced preload is required, a new collapsible spacer
and pinion nut must be installed.
Using the special tool to hold the pinion flange, tighten the pinion nut.
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Rotate the pinion occasionally to make sure the cone and roller bearings are seating correctly.
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Install a Nm (inch-pound) torque wrench on the pinion nut.
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Rotating the pinion through several revolutions, take frequent cone and roller bearing torque preload readings until the original recorded
preload reading is obtained.
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If the original recorded preload is lower than specifications, tighten to the appropriate specifications for used bearings. If the preload is higher
than specification, tighten the nut to the original reading as recorded.
21. Position the rear driveshaft and align the marks on the pinion flange.
22. CAUTION: The driveshaft centering socket yoke fits tightly on the rear axle pinion Range pilot. To make sure that the yoke seats squarely on the
flange, tighten the bolts evenly in a cross pattern as shown.
Install the bolts and tighten to specification.
23. Install the differential case in the rear axle differential.
