Hi, I'm hoping that one of the experts here can help me! I have a 19xx model 605 with the 2.0litre engine. Recently, it's started to make a rumbling sound from one of the wheels. This occurs only above about 40mph, and decreases if I turn slightly to the left. My first thought was that it was a worn wheel bearing, but I've checked the wheels and none of them have any play. I've put the car on axle stands and run it to "above 40mph", and didn't hear the noise - or at least, not as noticeable. I've also swapped each wheel in turn for the spare, running it to 40mph+ on the road each time, and that made no difference. Can anyone offer me a suggestion as to what the problem might be, please? Thanks in advance, -Phil Pace.