Superformance has used a few different systems as an emergency brake over the years. The Wilwood Spot Caliper, the driveshaft mounted assembly and their current system. The Wilwood Spot caliper has a fairly easy adjustment screw on each caliper and there is also an adjustment on the cables. Replacement pads are difficult to find, and driving even a short distance with the brake engaged will render it useless. The drive shaft mounted brake is quite difficult to adjust and once again, drive with it on, your done.... I can't speak for the latest design, but none are particularly robust in holding power. I have a document on how to adjust the drive shaft design. And there was also a simple modification for the early Wilwood Spot design. NOTHING YOU CAN DO WILL BEAT A ROCK UNDER THE TIRE........

Anyone can email me if you want a copy... I also have ROCKS available...
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Wiring Diagrams: SPF MKII, MKIII, GT40, CSX7000, CSX8000, Corvette Grand Sport, and Shelby Sebring, Bondurant & Cinema Tribute Cars.
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Large, easy to read and trace schematics with part numbers, wire colors, wire gauge, fuses, and electrical upgrade information. Trouble-shooting and replacement part numbers for those roadside repair adventures.
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