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Home >> Chevrolet >> 2020 >> Express 2500 LS, 6.0L Eng VIN G >> Repair and Diagnosis >> External Pages >> Different car >> Section 77 (Propeller Shaft) >> Diagnostic Information and Procedures >> Knock or Clunk Noise

Knock or Clunk Noise

WARNING: This page is about a different car, the 2019 GMC Savana 3500, 2019 GMC Savana 2500, 2019 Chevrolet Express 3500, and 2019 Chevrolet Express 2500. However, it is still accessible from the selected car via links, so may be relevant.
Checks Action
DEFINITION: Knocking or clunking noise occurs when operating the vehicle in high gear or coasting in NEUTRAL at 16 km/h (10 mph).
One or more of the universal joints are worn or damaged. Replace the universal joint. Refer to Universal Joint Replacement .
The side gear hub counterbore in the differential is wornoversize. Replace the differential case and/or the side gears. Refer to Differential Replacement (10.5 Inch Axle) , or Differential Replacement (9.5 Inch Axle) .
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