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Home >> Ford >> 2000 >> Excursion 7.3 F, RWD >> Repair and Diagnosis >> Drivelines & Axles >> Differentials & Drive Axles >> Differentials - DANA 50, 60, 80 & Ford 10.50" - Excursion & "F" Series Super Duty >> Overhaul >> Differential Assembly (DANA) >> Drive Pinion Bearing Preload

Drive Pinion Bearing Preload

  1. Install preload shims and slinger (if used) onto drive pinion. Install drive pinion into housing. Install drive pinion outer bearing using press, axle bearing/seal plate and axle bearing/seal installer. Install drive pinion flange with washer and NEW nut. Tighten nut to specification. See TORQUE SPECIFICATIONS .
  2. Using INCH-lb. torque wrench on pinion flange nut, measure torque required to rotate pinion. Pinion preload torque should be 20-40 INCH lbs. (2.26-4.52 N.m) for NEW bearings. If preload reading is low, remove preload shims from drive pinion. If preload reading is high, add preload shims to drive pinion. See Fig 1.
Fig 1: Identifying Differential Shim Placement (Dana Differentials)
G95E28120Courtesy of FORD MOTOR CO.
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