DEFINITION: A ping, snap or click is usually heard on initial load after the transmission is in gear, either in forward or reverse.

A loose pinion yoke or companion flange.

Tighten the bolts and the pinion nut to specified torque. Refer to Fastener Tightening Specifications .

One or more of the universal joints are worn or damaged.

Replace the universal joint. Refer to the following:

Heat shield interference

Eliminate interference.