I've got a 01 Silverado Ext Cab with the 5.3 engine and just over 41K miles.
I've started to get a squeaking noise that sounds like it is coming from the
drive shaft (one piece aluminum). It only makes the noise when I'm
accelerating, nothing when coasting or braking. The frequency of the squeak
increases as the truck accelerates. There in no vibration or clunking sound
as described in other threads, just this extremely irritating squeak.
A friend and I jacked the truck up to try and isolate the noise. When in
drive with the rear wheels spinning free, no noise. When the emergency
brake was lightly applied, the squeak came back. It sounds like it is
coming from the shaft itself, not the u-joints, rear end, or differential.
Any thoughts on what may be causing the squeak?