Just to go back to my comment about the close proximity of the ProTechs to the DeDion tube, the area affected is the upper De Dion mounting boss - if you have one. If you don't I doubt there would be an issue. I've improved the position with new spacers, but it is yet to have a FF set up following my rebuild and when it does, it may be more sensible to use the upper shock mounts. I've just taped the area with masking tape so I can check for witness marks after a short drive. Here are 2 pics of the situation: