Drive flange, for 7/8 inch-13 spline shaft, with 5/16 inch diameter bolt holes, 2-1/4 on center.
For the 352 Morflex Coupler (L52-10),
FORD: Drive flange, 13 spline for 7/8 inch diametr shaft. 5/16 inch diameter bolt holes 2-1/4 inch on center,
MASSEY FERGUSON: Optional drive flange for L601-9, 13-spline for 7/8 inch diameter shaft 5/16 inch diameter bolt holes 2-1/4 inch on center.
Made in USA