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Home >> Ford >> 2012 >> Mustang Base, 2D Coupe, Automatic Trans >> Repair and Diagnosis >> External Pages >> Different car >> Section 142 (Rear Drive Axle/Differential - Ford 9.75-Inch Ring Gear -- F150) >> In-Vehicle Repair >> Differential Bearings >> Installation

Differential Bearings: Installation

WARNING: This page is about a different car, the 2012 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
  1. Position the Drive Pinion Bearing Cup Installer and the inner and outer drive pinion bearing cups in their respective bores.
    1. Place the Rear Axle Pinion Bearing Cup Installer on the outer drive pinion bearing cup.
    2. Place the Rear Axle Pinion Bearing Cup Installer on the inner drive pinion bearing cup.
    3. Install the Drive Pinion Bearing Cup Installer.
      Fig 1: Positioning Drive Pinion Bearing Cup Installer, Inner And Outer Drive Pinion Bearing Cups
      G06125140Courtesy of FORD MOTOR CO.
  2. Tighten the Drive Pinion Bearing Cup Installer to fully seat the 2 differential drive pinion bearing cups.
    Fig 2: Locating Drive Pinion Bearing Cup Screw
    G06125141Courtesy of FORD MOTOR CO.
    3. NOTE: If a feeler gauge of the specification shown in illustration can be inserted between a cup and the bottom of its bore at any point around the cup, the cup is not correctly seated.
    Fig 3: Checking Drive Pinion Bearing Cup Installation Position Using Feeler Gauge
    G06125142Courtesy of FORD MOTOR CO.
  3. Make sure the differential pinion bearing cups are correctly seated.
    4. NOTE: Use the same drive pinion bearings and the drive pinion bearing adjustment shim from the drive pinion bearing adjustment shim selection procedure for final assembly or damage to the component may occur.
    NOTE: Install new drive pinion bearings without any additional lubricant since the anti-rust oil provides adequate lubricant without upsetting the drive pinion bearing preload settings.
    Fig 4: Installing Drive Pinion Bearings And Adapters
    G06125143Courtesy of FORD MOTOR CO.
    Item Part Number Description
    1 4621 Outer pinion bearing
    2 205-160 Adapter for 205-S127
    3 4630 Inner pinion bearing
    4 205-383 Depth Gauge/Aligner, Drive Pinion
    5 205-159 Adapter for 205-S127
    6 205-377 Drive Pinion Gauge Tube
    7 205-226 Depth Gauge/Aligner, Drive Pinion
    8 4010 Rear axle housing outer (front) pinion bearing
    9 205-111 Adapter for 205-S127
  4. Install the new drive pinion bearings and Adapters as shown in illustration.
    5. NOTE: This step duplicates final drive pinion bearing preload.
  5. Tighten the Adapter.
    • Tighten to 2.2 Nm (20 lb-in).
      Fig 5: Checking Differential Pinion Bearing Preload
      G06125144Courtesy of FORD MOTOR CO.
    6. NOTE: The Adapter must be offset to obtain an accurate reading.
    Fig 6: Inspecting Seating Of Drive Pinion Bearings
    G06125145Courtesy of FORD MOTOR CO.
  6. Rotate the Adapter several half-turns to make sure of correct seating of the drive pinion bearings.
  7. Install the Drive Pinion Gauge Tube.
    1. Position the Drive Pinion Gauge Tube.
    2. Install the 2 differential bearing caps.
    3. Install the 4 differential bearing cap bolts.
      • Tighten to 105 Nm (77 lb-ft).
        Fig 7: Installing Drive Pinion Gauge Tube
        G06167040Courtesy of FORD MOTOR CO.
    8. NOTE: Drive pinion bearing adjustment shims must be flat and clean.
    NOTE: A slight drag should be felt for correct drive pinion bearing adjustment shim selection. Do not attempt to force the drive pinion bearing adjustment shim between the gauge block and the gauge tube. This will minimize selection of a drive pinion bearing adjustment shim thicker than required, which results in a deep tooth contact in the final assembly of integral axle assemblies.
  8. Use a drive pinion bearing adjustment shim as a gauge for drive pinion bearing adjustment shim selection.
    • After the correct drive pinion bearing adjustment shim thickness has been determined, remove the Adapters.
      Fig 8: Identifying Drive Pinion Bearing Adjustment Position
      G06142851Courtesy of FORD MOTOR CO.
  9. Using the Bearing/Oil Seal Plate and Drive Pinion Bearing Cone Installer, press the drive pinion bearing and selected drive pinion bearing adjustment shim until they are firmly seated on the pinion gear.
    Fig 9: Pressing Drive Pinion Bearing And Drive Pinion Bearing Adjustment Shim
    G06125149Courtesy of FORD MOTOR CO.
  10. Place a new drive pinion collapsible spacer on the pinion gear against the pinion gear shoulder.
    Fig 10: Locating Drive Pinion Collapsible Spacer
    G07403744Courtesy of FORD MOTOR CO.
  11. Install the outer drive pinion bearing and drive pinion shaft oil slinger.
    Fig 11: Locating Outer Drive Pinion Bearing And Drive Pinion Shaft Oil Slinger
    G06125151Courtesy of FORD MOTOR CO.
  12. Lubricate the pinion flange splines with grease.
  13. Install the pinion gear in the pinion gear bore from inside the axle housing.
    Fig 12: Installing Pinion Gear In Pinion Gear Bore
    G06125222Courtesy of FORD MOTOR CO.
  14. Using the Differential Carrier Bearing Installer, press the LH and RH differential bearing on the differential assembly.
    Fig 13: Pressing LH And RH Differential Bearing On Differential Assembly
    G06125158Courtesy of FORD MOTOR CO.
  15. Install the differential carrier. For additional information, refer to DIFFERENTIAL CARRIER  .
  16. Install the drive pinion seal and flange. For additional information, refer to DRIVE PINION FLANGE AND DRIVE PINION SEAL  .
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