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Home >> Ford >> 1992 >> Crown Victoria Base, AOD >> Repair and Diagnosis >> Drivelines & Axles >> Differentials & Drive Axles >> Differential & Axle Shafts >> Overhaul >> Pinion Bearing Preload

Pinion Bearing Preload

  1. Place pre-selected shim on pinion. Press bearing onto pinion until bearing and pinion shim are firmly seated against shoulder of pinion. Install new collapsible spacer on pinion.
  2. Lubricate bearings with axle lubricant. Install front pinion bearing in housing. Install new pinion oil seal. Lubricate pinion oil seal.
  3. Insert companion flange into seal and hold firmly in place. From rear of axle housing, install pinion into companion flange. Start a new pinion nut on pinion.
  4. Gradually tighten pinion nut while holding companion flange. Rotate pinion in both directions several times to seat bearings. Using INCH lb. torque wrench, rotate pinion and check pinion bearing preload.
  5. Tighten pinion nut and continue to measure pinion bearing preload until specified pinion torque is obtained. See TORQUE SPECIFICATIONS  table.
  6. If the pinion bearing preload is exceeded before torque specification is reached, replace the collapsible spacer. See AXLE ASSEMBLY SPECIFICATIONS  table for proper specification. Install new pinion nut and repeat procedure. DO NOT  loosen pinion nut to reduce pinion bearing preload.
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