I have a bf mark 2 xr6 t with 320rwkw and a heavy duty clutch, when I disengage first the drive train clunks sometimes especially if I don't time it right and it is deaccelerating or accelerating still. Really annoying in car parks. Car has 190,000 with me new diff bushes and bushes in the rear end. Any ideas where to look? It got better when I did the bushes but it seems like the super heavy pressure plate just disconnects the clutch off too fast or something or there is slack in the drive tra