Freelander 2004 ABS fault

Can anybody HELP,

I'm going round in circles with my Freelander TD4 2004. I have got a knocking noise at the rear passenger side when when on uneven road/ pot holes was advised it was the shocker or top mount these have been replaced with no success the noise is still there!!

Also I have a ABS fault the car was fitted with the incorrect rear drive shafts causing the CV joints to wear the ABS sensors away, the CV joints and sensors have been replaced but the ABS fault is still showing on the dash HDC, ABS, TC, and hand brake lights are on!!

Please help.

Rear diff mounts worn? Loose/missing exhaust bracket?
Mike

Cheers, Its more like a metal on metal rattling noise!! have checked the diff mounts all seem to be sound. It was my local Land Rover dealer that recommended the shocker and mount.

Running out of ideas.

Andy