Fits Ford SB applications 1964-1980, Center hole diameter 1.751?, 28 oz/in imbalance, 157 tooth ring gear, Clutch bolt patterns: Ford metric diaphragm 10.5? clutches with 11.375? bolt circle, 8mm-1.25 thread, Ford Long Style 10.5? clutches with 11.375? bolt circle, 5/16-18 thread.
