It's getting harder to find flatheadCompatible with Ford clutch components. We can help you resolve this problem with our 10" clutch discs and 10" Long-style pressure plates for the flathead Compatible with V8. They replace 10" OEM with a 11-5/8" bolt circle. These premium organic clutch friction discs are for use with flatheadCompatible with Ford Compatible with V8 to S-10 T-5 transmission conversions. The pressure plate has a 6 bolt pattern divided up into 3 groups of 2 with a 3.125” center-to-center. Flathead 10 Inch Clutch Disc 1 Inch 14-Spline. EarlyCompatible with Ford Flatheads. S-10 T-5 transmission conversions. .317" friction surface thickness. .877 hub spline thickness. Pressure plate bolt pattern must match your flywheel!