Okay, I don't think it the breaks but I'll put this here anyway. I have an 03 KR Super Crew 4X4 with 116000 miles, and I noticed this annoying squeak when I back up. I just got from underneath my truck and I don't see any grease points. Am I missing something or will I have to pack the bearings with grease? Any help will be appreciated.

Ryan

 

More than likely, it's the reverse muffler bearing. Try using Vasoline!

What area does the sound seem to be coming from? It is speed sensitive? Does applying the brakes (gently) cause the noise to change?

 

Its coming from the wheels. Only in reverse and yes its speed sensitive. I can't pinpoint exactly where because I'm always in it when I hear it. Let me go check about the breaks.

 

I just went reverse it in my driveway, and its not the wheels. Sounds more like its under the truck. Maybe driveshaft?