It sounds like it is coming from the driveshaft U-joint area but only when letting off the gas or when not accelerating. Kind of a metal whining sound I guess, maybe metal on metal. Anything out there that is common for a 2001 Dodge Ram 1500 5.9L 4x4? Any ideas at all will be greatly appreciated, I like to do things myself on the truck but this one might be out of my league if it is too much, but figuring it out is the first step.
Engine: 1998-2001 360ci (5.9L) Magnum V8 245hp(standard), 250hp(Sport package)
Rep Power: 0
ok first thing to diagnosis your problem, is your truck a short bed or long bed because the long beds have a carrier bearing and can cause the noise second check to see if your driveshaft u-joint clamps are tight to the rear end second if you can kinda pin point where your problem persist like safely rolling 15 mph and letting off the accelerator having your head out the door like i said safely lol dont want any mishaps but all in all be sure it isnt your rear-end going out.