I've recently had a rebuilt tranny/transfer case/torque converter installed on my truck. When I've been driving for a while on the highway, and I let my foot off the gas while on a decline, I hear this really loud scratching, whining noise that last for about 10 seconds and then stops. It feel as if it is falling out of gear or maybe losing pressure of some kind and I cant diagnose it because it only happens at freeway speeds. Any ideas whats wrong?
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2003 GMC Sierra 2500 HD Question: Drivetrain whining going downhill on freeway when I release foot from gas pedal
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