People, I have a 2002 LL Bean Outback and it has developed a growling noise whenever I am pushing power to the drive train. Coasting it runs quiet but the faster you more you push it the louder its gets. Sitting at idle everything is quiet but slip it into drive the rumble grumble starts. I replaced the rear drive shaft due to noise and it helped some but the rumble seems to be in the transmission(?)/front diff(?) - Its a great one owner car with 160,000 mile on it.hard to find a mechanic who knows the machine>Appreciate any suggestions, advice, thoughts