Here's the Heidts coilover rear suspension setup installed and ready to go in our '68 fastback. Carrying PN RM-101, it's also available with a 9-inch axle housing under PN RM-101-H. We were able to do the installation in about two days, not including the three pieces that needed to be welded to the axle housing. The rest of the system is a true bolt-in installation. It does require holes to be drilled for installation of the various brackets. Note that the tailpipes have been removed; they will be reinstalled at a muffler shop to fit around the Panhard rod and coilovers.