Hi,

I have an '89 240 with manual box and 195k miles.

I am noticing a whining noise which I think is from the rear.

Starts at about 35 mph and increases with speed.

Not wanting to spend too much on this as I do not think I will be able
to ket it through another mot.  Had lots of welding last time and was
told then that it was borderline.

However, I am not wishing to get stuck somewhere in the middle of winter
so any ideas on what might cause this would be useful.

Thanks.

Keith