DEFINITION: A knocking or clunking noise in the driveline occurs when operating the vehicle in high or coasting in neutral at 16 km/h (10 mph).

The universal joint is damaged or worn.

Replace the universal joint. Refer to:

The side gear hub counterbore in the differential is worn oversize.

Replace the differential case and side gears as needed. Refer to Rear Axle Disassemble in Rear Drive Axle.