hello all. New to this forum, Hope I am doing it right. Maybe someone can give me some insight, because I am going crazy and broke with my Tahoe. I own a 2003 Tahoe 4x4, 4.8 engine. I have a total of 255,000 miles. My issue is When I bank to the right I get this moaning noise from front end. I checked the front end and all is tight. Changed both hub bearings, axles. brakes and rotors. I happens when I go forward, it also does it banking left but not as pronounced. I was told it was coming from the front diff, also had that repaired and the noise is still there, also installed new front tires, no change. Now they are disconnecting the front drive shaft. I know it aint that because it does not turn in 2wheel drive. Ive invested quite a bit in the truck, it runs like a top. So please someone point me in the right direction. Thanks