Mountaineer 4WD V6-4.0L VIN E (1999)
9. Install the new nut hand-tight.
10. CAUTION: Do not loosen the nut to reduce preload. Install a new collapsible spacer and nut if preload reduction is necessary.
Use the special tool to hold the pinion flange while tightening the nut to set the preload.
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Tighten the nut, rotating the pinion occasionally to ensure the differential pinion bearings are seating correctly. Take frequent differential
pinion bearing preload readings by rotating the pinion with a Nm (inch-pound) torque wrench. The final reading must be 0.56 Nm (5 lb-in)
more than the initial reading taken during removal.
11. Align the index marks and position the front driveshaft.
12. Install the universal joint spider retainers and bolts.
13. Check the fluid level and, if necessary, fill the axle to specification.
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Use Motorcraft SAE 80W90 Thermally Stable 4x4 Axle Lubricant meeting Ford specification WSP-M2C197-A.
14. Lower the vehicle.
15. If so equipped, reactivate the air suspension.
