Knock or Clunk Noise

Checks DEFINITION: Knocking or clunking noise occurs when operating the vehicle in high gear or coasting in NEUTRAL at 16 km/h (10 mph).	Action
One or more of the propeller shaft universal joints are worn.	Replace the affected propeller shaft universal joints. Propeller Shaft Universal Joint Replacement
The side gear counterbore in the differential is worn oversize.	Replace the differential case and/or the side gears. Differential Replacement