will121278@googlemail.

I own a W reg impreza 2000 uk model and when I reverse and steer to the left or to the right it's making a clunking noise that you can feel aswell.it doesn't do it at all when I first get in the car but once it starts it does it every time I reverse out of parking bays etc....my first thoughts was maybe diff oil may need changing but I'm no expert it's my first subaru and owned it for only a couple of months.any more information just ask and any feedback much appreciated