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Home >> Ford >> 2004 >> Mustang Mach 1, Standard >> Repair and Diagnosis (Single Page) >> Drivelines & Axles >> Differentials & Drive Axles >> Rear Drive Axle/Differential - Ford 7.5" Ring Gear >> In-Vehicle Repair >> Drive Pinion Flange and Drive Pinion Seal >> Removal

Drive Pinion Flange and Drive Pinion Seal: Removal

  1. Raise and support the vehicle. For additional information, refer to RIDING HEIGHT ADJUSTMENT .
  2. Remove the rear wheel and tire assemblies. .
  3. CAUTION: Remove the rear brake calipers to prevent drag during the drive pinion bearing preload adjustment.
    CAUTION: Do not allow the calipers to hang from the brake hoses.
  4. Remove the rear brake caliper and support bracket from the knuckle as an assembly. Wire the caliper and support bracket assembly out of the way. For additional information, refer to DISC .
  5. CAUTION: Index-mark the driveshaft flange and pinion flange (4851) to maintain initial balance during installation.
    CAUTION: The driveshaft centering socket yoke fits tightly on the pinion flange pilot. Never hammer on the driveshaft or any of its components to disconnect the yoke from the flange. Pry only in the area shown, with a suitable tool, to disconnect the yoke from the flange.
    Fig 1: Index-Marking Driveshaft/Pinion Flange
    G03237088Courtesy of FORD MOTOR CO.
    Fig 2: Disconnecting Yoke
    G03237089Courtesy of FORD MOTOR CO.
  6. Disconnect and position the driveshaft out of the way. For additional information, refer to DRIVESHAFT .
  7. Install an N.m (inch/pound) torque wrench on the nut and record the torque necessary to maintain rotation of the drive pinion gear through several revolutions.
    Fig 3: Measuring Drive Pinion Rotating Torque
    G03237090Courtesy of FORD MOTOR CO.
  8. CAUTION: After removing the nut, discard it. Use a new nut for installation.
    Fig 4: Removing Nut
    G03237091Courtesy of FORD MOTOR CO.
  9. Use the special tool to hold the pinion flange while removing the nut.
  10. Index-mark the pinion flange and drive pinion gear stem to maintain initial balance during installation.
    Fig 5: Index-Marking Pinion Flange & Pinion Gear
    G03237092Courtesy of FORD MOTOR CO.
  11. Using the special tool, remove the pinion flange.
    Fig 6: Removing Pinion Flange
    G03237093Courtesy of FORD MOTOR CO.