I was looking under the bottom of my car the other day & noticed sub-frame connectors, the most basic kind but sub-frames nonetheless. Do all Machs come w/ the connectors? I bought it brand new w/ only 39 miles, 10 were mine from the test drive.
They are the same bolt on subs that Ford puts on the convertibles. If I were you I would install full length subframes your car, or at least weld up the ones that are on there.