Ralco RZ RZ86541 Aluminum Speed Flywheel Fitment: 1958-1970/Ford//332, 352, 390, 406, 410, 427, 428 CID/FE::External balance weights are included in the hardware kit supplied with the flywheel, Includes 11 Inch & 11.5 Inch 3-Finger and 11 Inch Diaphragm clutch patterns, If friction surface has an 11.75 Inch dia., use part #RZ21171, If friction surface has an 11 Inch dia., use part #RZ21101 |