Thanks for the reply, I've checked the wheel bearings twice now, there seems to be no movement if your trying to rock the wheel. The only noise I get is the pad touching the disc. By looks of things this has to be the obvious cause (theoretically) as the gearbox was clean approx 10-15k ago. Subsequently it's got grease all around the drive shaft joint, but the oil isn't coming out at a leaking rate, I.e there's no oil on my driveway, & there are no drops on the gearbox. It's just damp in (what I think is sprayed oil) which comes out the faulty bearing/seal & as the shaft turns the oil spreads. There are no signs of oil when looking down from the engine bay, wouldn't ever suspect this underneath. Thanks again