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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 889 (Driveline System - General Information -- F250-F550 Super Duty) >> Diagnosis And Testing >> Driveline System >> Component Tests >> Runout Check - Half-Round Companion Flange (Ford Axles Only)

Runout Check - Half-Round Companion Flange (Ford Axles Only)

WARNING: This page is about a different car, the 2005 Ford Pickup, 2005 Ford F550 Super Duty, 2005 Ford F450 Super Duty, and 2005 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
CAUTION: Pinion bearing preload must be reset if the pinion nut has been loosened or removed.
  1. Raise the vehicle on a twin-post hoist that supports the rear axle.
  2. Remove the driveshaft. For additional information, refer to DRIVESHAFT .
  3. Check the pinion flange for damage.
  4. Insert the correct size special tool.
    Fig 1: Inserting Correct Size Special Tool
    G03904258Courtesy of FORD MOTOR CO.
  5. Position the special tool on the pinion flange.
    Fig 2: Positioning Special Tool On Pinion Flange
    G03904259Courtesy of FORD MOTOR CO.
  6. Align the holes on the gauge with the holes in the pinion flange and install the bolts and nuts.
    Fig 3: Aligning Holes On Gauge With Holes In Pinion Flange
    G03904260Courtesy of FORD MOTOR CO.
    7. NOTE: Accurate tool setup will result in accurate final readings.
    Fig 4: Positioning Special Tool
    G03904261Courtesy of FORD MOTOR CO.
  7. Position the special tool as shown. Adjust and lightly tighten the mounting bolts and nuts so the gauge runout is 0.254 mm (0.010 inch) or less.
  8. Position the special tool on the edge of the gauge. Turn the drive pinion runout gauge, and locate and mark the high spot on the pinion flange with yellow paint.
    Fig 5: Positioning Special Tool On Edge Of Gauge And Locating High Point
    G03904262Courtesy of FORD MOTOR CO.

    If the flange runout exceeds 0.25 mm (0.010 inch), remove the pinion flange, reindex the flange one-half turn on the pinion, and reinstall it.

  9. Check the runout again. If necessary, reindex the flange until an acceptable runout is obtained. If the flange runout is still more than 0.25 mm (0.010 inch), install a new pinion flange.
    Fig 6: Checking Runout
    G03904263Courtesy of FORD MOTOR CO.
  10. If excessive runout is still evident after installing the new pinion flange, install a new ring and pinion. Repeat the above checks until the runout is within specifications.
  11. Install the driveshaft. For additional information, refer to DRIVESHAFT .
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