2020 Trail Boss, 1/2 Ton, 4x4, Crew Cab, 5.3L
Replaced tires at 40,000 miles with less aggressive all terrane tread.
When traveling between 45 and 55 MPH, and slightly accelerating, I hear a whining noise coming from the rear end.
When I lift my foot from the gas pedal the sound goes away.
Dealership charged me $90 to say that it is normal rear differential pinion mesh noise.
Any thoughts?