Sorry - read that three times & still can't get it.With the leaf springs the lower link will hang down below the spring so the link will have to be inside the chassis rail. The upper is clear and can go through the spring space. With the BW78 the Watts link pivot on the cover is 85mm off centre. That affects how the link will be installed. It is imperative that the links are the same length. That means swapping the links side for side compared to the donor AU XR6 which is ok. Using the 'longer' side that means I can sit the chassis dropper just inside the chassis rail while the other will poke through and out the other side of the rail.