Started to notice a whirring noise from the passenger side wheel and a lot of judder through the brake pedal when I brake from 50mph+ on my 1995 A4 1.8 Auto. Have checked my discs and pads and they are fine, also checked in case I had a buckled alloy but this is fine also.
My Dad thinks it might be a wheel bearing or the diff? Any ideas, guys?

Cheers,
Dave