2013 Mustang GT - Knocking wheel noise
this is my first post. I'm from germany, sorry if my english is not the best.
Since a few month have a knocking noise from the backwheels, if i drive bad roads, bumps etc. Last time i lifted my car i noticed that i can pull/push the backwhells a bit in- and outside. Many Mustang-owners told me, this ist normal. But it made the same noise, i hear when i'm driving. When i'm driving trough corners it is getting better...so i think that is the problem. I think in corners the wheels can not move in and out, because they are at the maximum (in or out).
Few month ago i was on a racetrack and one time in a corner i get of the track and slide in the gras. Could it be, that i damaged somathing? The Diff? I never saw anything. Also i added some wheelspacers (1 inch per wheel), could that be a problem?
I heard, that the Diff keep the wheels in the axle and if they are moving to much, the Diff is the problem. By the way, since this time a little bit oil comes out of the Diff (Seal: Diff - Shaft). I fixed this allready.