Hi all, I'm new to impreza ownership and I am enjoying myself alot! I have a question about my rear diff. When I am travelling at slow speeds it chatters and when I turn at junctions ect in both directions I get a clicking noise, also when reversing and turning. I have looked at the diff to try to find out what type it is as I was going to try changing the fluid first. Does anyone know how I can Identify which diff I have? There is a white label that has ATS LSD, something in japanese then No:009017. The car is a 97 Jap STI