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Home >> Pontiac >> 2001 >> Aztek Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 872 (Rear Drive Axle) >> Repair Instructions >> Gear Tooth Contact Pattern Inspection >> Correct Contact Pattern >> Service Hints
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Service Hints

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Loose bearings on the drive pinion or in the differential case may cause patterns that vary. If the contact pattern varies, inspect the following preload settings:

If these settings are correct, inspect for damage or incorrectly assembled parts.

Fig 1: Identifying Correct Contact Pattern
G01468180Courtesy of GENERAL MOTORS CORP.