Bostonian1976

Hi all - I picked up my 975 dollar 2000 Outback, and as expected it has some issues. Hoping you can help me sort them out. 1) My biggest concern is the knocking noise when first getting underway. It seems to come from directly below the driver's seat or slightly more aft. It's a vibration/knock. Viscous coupler? U-joint? How can I tell? 2) The axle grease burning smell is pretty bad - I'm assuming I probably have a torn axle boot pouring grease on the exhaust? The smell gets into the cabin and smokes a bit outside too. Other than that the car seems pretty good - but the vibration/knocking is a concern...