Hello and welcome! The noise you describe is normal and it’s a feature, not a bug. You’re hearing the antilock brakes engage to stop a spinning wheel and transfer torque to the other side where there is traction. This will happen if you spin the wheels in 2WD or 4WD. It’s called brake lock differential (BLD) and is a way of making an open differential into a limited slip using the antilock brakes. It works well (even with a tire completely off the ground) but can be annoyingly loud! Lol.
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2008 Liberty Sport 4x4 Automatic
Jeepin By Al 4" Lift Kit
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Full MOPAR skid plates
Rock Lizard Skink Super Sliders
AtTheHelm Front Recovery System & Roof RackM116A3 Trailer build thread: viewtopic.php?f=72&t=77997