Some more pics
Long bolts in bottom holes, which go all the way through the subframe and all the way through the bottom holes of the rack clamps.
now this shot shows the top of the rack clamp with the threaded hole into which the two shorter bolts go (sadly I am still waiting for new bolts to arrive so I can't show these)
and when tightened up with all 4 bolts, the rack should fit flush to the subframe (again note i have only got the two bottom bolts through at the mo)
