Help identify a sound

[rockola1971]

The sound I posted, does that sound like the tcase? I haven’t found any other issues the only thing I could think of was the tcase internally

Sounds like a axle/diff bearing getting loaded when you accelerate and making noise to me. Could very well be one of the ball bearings in the Tcase too. Needs to be put up on lift to isolate.

 

[alpha_omega]

Did you ever figure out what the sound was? I would have guessed one of the three areas that was already suggested. Outer pinion bearing on the rear differential, wheel bearing (although you weren’t turning), or something in the case.