PowerTrain Technology (PTT) Small Diameter Multi-Disc Racing Clutches
PowerTrain Technology Racing Clutches PowerTrain Technology (PTT), part of the Wharton Automotive Group, is a manufacturer of small diameter multi-disc racing clutches, reverse starter mount bellhousings, starters, reverse mount ring gear PowerTrain Technology (PTT), part of the Wharton Automotive Group, is a manufacturer of small diameter multi-disc racing clutches, reverse starter mount bellhousings, starters, reverse mount ring gears, button flywheels and hydraulic release bearings. 4.5", 5.5" and 7.25" clutches available. Proudly made in the USA.