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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 778 (Rear Drive Axle/Differential - Ford 9.75-Inch Ring Gear) >> Diagnosis And Testing >> Rear Drive Axle and Differential >> Checking Tooth Contact Pattern and Condition of the Ring and Pinion >> Good Contact Pattern

Good Contact Pattern

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Pattern inspection allows the technician to detect gross errors in set up prior to complete assembly of the differential assembly. Pattern contact should be within the primary area of the ring gear tooth section. Avoid narrow or hard contact with the outer perimeter of the ring gear tooth. Pattern inspection should be on the drive side of the tooth. Correct assembly of the drive pattern will result in satisfactory coast performance.

NOTE: If a gross pattern error is detected with the correct backlash, check the pinion shim selection.
Fig 1: Identifying Tooth Contact Pattern (Good Contact Pattern)
G03883392Courtesy of FORD MOTOR CO.
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