Hi I purchased a 2009 kuga 2.0 tdci awd 3 months ago and it has developed a vibration/shudder under hard acceleration in 6th gear between 60-70 mph it doesnt do it if you accelerate gently. I can only describe it as the same sort if noise as if you are driving over rumble strips on the motorway. Garage have replaced both front driveshafts,front wheel bearings,n,s,r wheel bearing,wheels changed front to rear,prop bearings,rear diff rebuilt and haldex oil and filter under warranty and it's still doing it! I had the car remapped and egr deleted when I bought it. Anyone have a clue as to what might be causing this please?