Ranger 4WD V6-245 4.0L VIN X SFI (1999)
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Use Motorcraft SAE 8OW90 Thermally Stable 44 Axle Lubricant meeting Ford specification WSP-M2C197-A.
2. CAUTION: The pinion flange must never be hammered on or installed with power tools.
Align the index marks and position the pinion flange.
3. Apply a small amount of lubricant to the washer side of the new pinion nut and install hand-tight.
4. CAUTION: Never back off the pinion nut to reduce preload. If reduced preload is required, install a new collapsible spacer and pinion
nut.
NOTE: Pinion bearing preload is set by tightening the pinion nut.
Use the Companion Flange Holding Tool to hold the pinion flange while tightening the pinion nut and set the preload.
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Tighten the pinion nut, rotating the pinion occasionally to ensure the differential pinion bearings are seating properly. Take frequent
differential pinion bearing preload readings until the desired reading is obtained by rotating the pinion with a Nm (inch/pound) torque wrench.
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If the original recorded preload is lower than specification, tighten to specification. If the original recorded preload is higher than specification,
tighten to the original reading as recorded.
