so my v6 saloon galant has started acting up, when i drive over road markings, cats eyes etc the rear of the car gets all squirrely, i went through some shallow surface water on the road the other day and the whole back end of the car slewed around. I went straight home and jacked up the back of the car expecting to find the anti roll hanging off or similar but everything seemed tight with no play, the only thing i did find was some slight play in one of the rear wheel bearings (i have ordered a replacement) but would that cause these symptoms? Cheers for any ideas.