For 1990-2009 cars

Checks | Action
--- | ---
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 .
Loose rubber coupling | Tighten the bolts to specified torque. Refer to Fastener Tightening Specifications .
One or more of the universal joints are worn or damaged | Replace the propeller shaft assembly.
Heat shield interference | Eliminate interference.