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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1396 (Vibration Symptoms Diagnosis And Correction) >> Diagnostic Information and Procedures >> Propeller Shaft Phasing Inspection >> Special Tools

Special Tools

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J-23498-A:  Driveshaft Inclinometer or equivalent

NOTE: This inspection procedure is intended to inspect propeller shaft systems with 2 or 3 U-joints only.

Correct phasing of a propeller shaft refers to the relative alignment of the U-joint yoke flanges to each other to provide proper cancellation of the U-joints. The yokes should be directly aligned to within the range specified in this procedure.