Tom, thanks for the pix - that helps. Looks like the Addco (?) bar you have is bass-ackwards from what the Datsun 1200 Competition Suspension manual calls for. The comp sway bar points the other way round, (with the ends pointed forward) and loops over the axle assembly. It does not mount to the body, but rather to the leaf springs with (2) bushings/clamps per side. Tension on the bar is adjusted by sliding the bushings forward or aft to suit conditions. I think that Trevor Harris had that design down pat from the day he laid ink to drafting paper.