Has anybody had this fault, i've got a heavy knock on the o/s/f of the vehicle, replaced ARB bushes and droplinks on the front, i knew they knackered so it was the first obvious port of call, it went for 2 days and back but very heavy. Checked for play on the suspension and found none, checked shockers o.k replaced last year. It only happens when the car is coasting, as soon as you accelerate or cruising it will not knock, when it knocks it will be on uneven roads or potholes, never on a sleeping policeman. It sounds like it comes from the supension turrets. any suggestions people?