Hello! My 2011 5.7 2x4 club cab makes the most annoying whinning sound, I'm not sure if it's from my rear end, tranny, or possibly trans cooling line as I've read on some previous post. I've noticed the longer I drive it the louder it gets and it changes sounds when i let off the gas pedal. I'll try to post a video of the sound. Please help as I'd like to know what it is before I take it to a mechanic. Ps, I called my dealer and asked if I my warranty was still void, negative! 100 thousand mile power train, or 5 years. It expired may 2016. I've got 98 thousand miles! Just my luck..