Click...click is the sound we hear from the passenger rear wheel on our 2008 4Runner when backing out of our driveway. Other than that the 4Runner runs perfectly with 94,000 miles on it. The noise began weeks ago before we had the brakes serviced. I told the mechanic about the noise and he looked into it. Retaining clips are in place. The noise is still there only when backing. Sometimes it's barely noticeable. Other times it's quite noticeable. Help, please!

 

Is the CV joint shot even if the boot isn't torn? Is your vehicle lifted?