I have a noise coming from the rear wheels on my y reg (2001) 2.8 v6 4motion. When i turn a tight corner at low (<10mph) on almost full lock there is a noise from the inside rear wheel. When i say inside i mean on a right hand turn its the rear right wheel, and vice versa. Its like its turning faster than it should to keep up with the outside wheel. Its been suggested that a Haldex oil and filter change may solve it. Anyone had similar problem? Its only on tight turns at low speed, no problems otherwise.