Hi Guys,

I`ve been searching and reading other people's blogs but not 100% sure if anyone has the exact same problem as me. I`ve got a 99 s2k and I`ve recently started to hear teeth grinding noises in my rear left. The noise is constant and occurs even when I`m driving straight and not turning or braking. The noise amplifies at about 40kms onwards.

Initially, i thought it was the wheel bearings, bald tyres, or brakes scrapping (really sounds like this) but after peds suspensions looked at it and put it on a hoist running, they pointed out that the noise was coming from the diff. The prev owner changed the diff oil recently with Motul and I`m thinking could it be the different oil thats making the noise? The diff doesn't make the knocking noise but just the teeth grinding noise. Also the diff was serviced at the start of the yr and bearings changed by the prev owner's mechanic.

I would really appreciate any help here pls!