Growling sound coming from the front. Help!!!
I have a 2003 GMC Yukon XL Denali with 150k miles. I'm experiencing growling sounds coming from the front (what seems to be front left). It happens on acceleration, deceleration and coasting. I can even hear it going about 5mph, just a lot slower growling. Front wheel bearings have no play and were replaced about 30k miles ago. I also tried to move the CV's by hand and don't seem to have any play. Could it be a output shaft bearing or something internal to the diff or transfer case? Thank you in advance for any suggestions...