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Home >> Chevrolet >> 2003 >> Silverado 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 39 (Front Drive Axle) >> Repair Instructions >> Gear Tooth Contact Pattern Inspection >> Correct Contact Pattern >> Service Hints

Service Hints

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Loose bearing 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: Correct Contact Pattern
G01480542Courtesy of GENERAL MOTORS CORP.