Hi, i would like to know your opinion..
My s197 had little whine from rear end so i ordered new rebuild kit for 7.5 ( all bearings), gears stayed same because there wasnt any damage. My mechanic changed bearings, put all together and after test drive there was much worse sound from the rear end then before.. especially on deceleration..
What could go wrong?

Theres also video how it sounds :

Thanks and sorry for my bad english