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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1800 (Rear Drive Axle/Differential - Ford 9.75-Inch Ring Gear -- F150 & Mark LT) >> In-Vehicle Servicing >> Drive Pinion Flange and Drive Pinion Seal >> Installation

Drive Pinion Flange and Drive Pinion Seal: Installation

WARNING: This page is about a different car, the 2007 Lincoln Mark LT and 2007 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
  1. Lubricate the new drive pinion seal with grease.
  2. Using the special tool, install a new drive pinion seal.
    3. Fig 1: Using Special Tool To Install Drive Pinion Seal
    G03878608Courtesy of FORD MOTOR CO.
  3. Lubricate the pinion flange splines with axle lubricant.
    4. NOTE: Disregard the scribe marks if a new pinion flange is being installed.
  4. Align the pinion flange with the drive pinion shaft.
    5. Fig 2: Identifying Index-Mark On Pinion Shaft And Flange
    GF0003127Courtesy of FORD MOTOR CO.
  5. Using the special tool, install the pinion flange.
    6. Fig 3: Installing Pinion Flange Using Special Tool
    G03884510Courtesy of FORD MOTOR CO.
    CAUTION: Install a new pinion nut with the same color as the original if not replacing the collapsible spacer. If a new collapsible spacer is installed, install the nut in the kit, as indicated in the chart below, or damage to the component may occur.
  6. Position the new pinion nut.
    9.75 IN. DRIVE PINION NUT

    Part Number Color Description Application
    19G405 Green Axles built before 7/16/07
    4320 White Axles built after 7/16/07
    4C121 White Kit with spacer for all 9.75-in axles
    7. Fig 4: Identifying Pinion Nut
    GF0003128Courtesy of FORD MOTOR CO.
    CAUTION: Under no circumstances is the pinion nut to be backed off to reduce drive pinion bearing preload. If reduced drive pinion bearing preload is required, a new drive pinion collapsible spacer and pinion nut must be installed or damage to the component may occur.
    NOTE: Remove the special tool while taking drive pinion bearing preload readings with the Nm (lb-in) torque wrench.
  7. Using the special tool to hold the pinion flange, tighten the pinion nut.
    • Rotate the drive pinion occasionally to make sure the drive pinion bearings are seating correctly.
    • Install a Nm (lb-in) torque wrench on the pinion nut.
    • Rotating the drive pinion through several revolutions, take frequent drive pinion bearing preload readings until the original recorded drive pinion bearing preload reading is obtained.
    • If the original recorded drive pinion bearing preload is lower than specification, tighten to the appropriate specification for used drive pinion bearings. If the drive pinion bearing preload is higher than specification, tighten the pinion nut to the original reading as recorded. For additional information, refer to the Specification portion of this section.
    8. Fig 5: Holding Pinion Flange With Special Tool
    G03883491Courtesy of FORD MOTOR CO.
  8. Position the driveshaft and align the index mark on the pinion flange.
    9. Fig 6: Aligning The Index Marks On The Pinion Flange
    GF0000845Courtesy of FORD MOTOR CO.
    NOTE: The driveshaft centering socket yoke fits tightly on the pinion flange pilot. To make sure that the driveshaft centering socket yoke seats squarely on the pinion flange, tighten the driveshaft flange bolts evenly in a cross pattern.
  9. Install the 4 driveshaft flange bolts.
    • Tighten to 103 Nm (76 lb-ft).
    10. Fig 7: Locating Driveshaft Flange Bolts
    GF0000834Courtesy of FORD MOTOR CO.
  10. Install the rear brake disc. For additional information, refer to REAR DISC BRAKE article.
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