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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1799 (Rear Drive Axle/Differential - Ford 8.8-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. NOTE: If the new drive pinion seal becomes misaligned during installation, remove the drive pinion seal and install a new drive pinion seal.
  2. Using the special tool, install a new drive pinion seal.
  3. Lubricate the pinion flange splines with axle lubricant.
    4. Fig 1: Installing Rear Axle Drive Pinion Seal
    GF0003073Courtesy of FORD MOTOR CO.
    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: Placing Index Marks On Pinion Flange
    GF0000818Courtesy of FORD MOTOR CO.
  5. Using the special tools, install the pinion flange.
    6. Fig 3: Installing Pinion Flange
    GF0003074Courtesy 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 or damage to the component may occur.
  6. Position the new pinion nut.
    8.8-IN DRIVE PINION NUT

    Part Number Color Description Application
    389546-S100 Orange Axles built before 7/16/07
    4320 Purple Axles built after 7/16/07
    4C121 Purple Kit with spacer for all 223.52 mm (8.8 in) axles
    7. Fig 4: Identifying Pinion Nut
    GF0000819Courtesy 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.
    CAUTION: The color on the rear face of the drive pinion nut is critical to this repair. Use the same color new drive pinion nut for installation. If a new collapsible spacer must be installed for pinion bearing preload reduction, install the nut supplied with the new spacer 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 specifications, tighten to the appropriate specifications 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 Specifications in this article.
    8. Fig 5: Holding Pinion Flange Using Special Tool
    G03878592Courtesy of FORD MOTOR CO.
  8. Install the driveshaft. For additional information, refer to DRIVESHAFT article.
  9. Install the brake disc. For additional information, refer to REAR DISC BRAKE article.
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