Can anyone help please. I lowered my mb6 40 mil with gmax springs on standard shocks and although the handling has got better and the ride is the same, theres alot of knocking noise over bumps and very rough road. Is this normal? It cant be the suspension bushes cos i replaced them not too long ago along with anti roll bar links for the same knocking reason and it was perfect after that. Can i get rid of this as it annoying?