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HOMESERVICE MANUALSBUICK1987CENTURY CUSTOM, 4D SEDAN, 2.5 RREPAIR AND DIAGNOSIS (SINGLE PAGE)DRIVELINES & AXLESAXLE SHAFTS - FRONTSERVICE (IN-VEHICLE)HUB & BEARING ASSEMBLYREMOVAL
1987 Buick Century Custom, 4D Sedan, 2.5 R

Hub & Bearing Assembly: Removal

1987 Buick Century Custom, 4D Sedan, 2.5 RSECTION Removal
  1. Loosen hub and lug nuts. On all bodies, raise and support vehicle. If twin-post hoist is used, place jack stands under frame and lower front post of hoist. Remove wheel assembly. Install CV joint boot protectors (J-28712 on outer joints and J-33162 on inner joints).
    NOTE: Boot protectors are only required on silicone (Gray) boots, generally right inner CV joint. All other boots are made of thermoplastic material (Black) and do not require boot protectors. Not all models use Gray boots.
  2. Clean stub shaft of dirt and oil and remove hub nut and washer. Discard hub nut. Remove brake caliper and support out of the way. Remove rotor. On "A" bodies, mark attaching bolt and corresponding hole for reassembly reference if bearing is to be reused.
  3. Remove 3 hub retaining bolts. Some models use Torx head bolts. Remove brake splash shield. Install Hub Remover/Installer (J-28733) and turn bolt to pull hub and bearing assembly off axle shaft. See Figure . If excessive corrosion is present, ensure hub and bearing assembly is loose in knuckle before installing hub remover/installer.
  4. If hub and bearing assembly is being replaced, separate stabilizer bar from control arm, if equipped. Separate tie rod from steering knuckle. Remove lower ball joint nut and separate lower ball joint from steering knuckle with Ball Joint Separator (J-35315).
  5. Scribe alignment mark on upper cam adjusting bolt and strut damper clamp. Remove 2 strut-to-knuckle bolts. Support outer end of axle shaft and remove steering knuckle. Separate axle shaft from steering knuckle and support out of way. Pry seal out of knuckle.
    NOTE: DO NOT  move vehicle with axle shaft out of hub and bearing assembly or until hub nut is installed and tightened. DO NOT  use a hammer or apply heat to remove hub and bearing assembly to avoid internal bearing damage.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.