Resonance / Noise
Just wondering if anyone has had similar or could throw any suggestions my way, My 2.2 Antara 2012 65k has developed a noise which comes in at 40mph and fades away at around 52mph, it has been into a garage and they are struggling to identfy the noise, I have changed the Transfer box Oil, replaced rear tyres but no change, noise appears to come from the rear, the garage has removed the propshaft and run vehicle again no change. Does not sound like wheel bearing, that's not to say it isn't but they are cautious with regard to changing them in case it is not,, rear Diff?? could be a contender , not sure what sort of noise they make if it is that.
Any suggestions appreciated.