Out driving the car yesterday and there was a sudden metallic crunch from underneath followed by a grinding sound.
Eventually got the car home and I have just crawled underneath this morning and drained the rear diff oil into a jug.
Silvery colour and metallic fur on the magnetic drain plug !
Had new recon diff fitted in March (but only 2 pin which I didn't ask for) . It has failed after 3 months.
Has 12 months warranty so should be covered.