Toyota
Jeep Cherokee
 Service Manual
Differential and driveline » Tube, 181, and 186 FBI axle » Cleaning and inspection
Axle components

Wash differential components with cleaning solvent and dry with compressed air. Do not steam clean the differential components.

Wash bearings with solvent and towel dry, or dry with compressed air. DO NOT spin bearings with compressed air. Cup and bearing must be replaced as matched sets only.

Clean axle shaft tubes and oil channels in housing.

Inspect for;

  •  Smooth appearance with no broken/dented surfaces on the bearing rollers or the roller contact surfaces.
  •  Bearing cups must not be distorted or cracked.
  •  Machined surfaces should be smooth and without any raised edges.
  •  Raised metal on shoulders of cup bores should be removed with a hand stone.
  • Wear and damage to pinion gear mate shaft, pinion gears, side gears and thrust washers. Replace as a matched set only.
  •  Ring and pinion gear for worn and chipped teeth.
  •  Ring gear for damaged bolt threads. Replaced as a matched set only.
  •  Pinion yoke for cracks, worn splines, pitted areas, and a rough/corroded seal contact surface. Repair or replace as necessary.
  •  Preload shims for damage and distortion. Install new shims, if necessary.
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