0.875 in. Lg o/a; 25 internal involute spline teeth w/30.0 degrees pressure angle by 0.7813 in. Pd by 0.8125 in. Major diameter by 0.750 in. Minor diameter by 0.750 in. Dp; 93 external involute spline teeth w/30.0 degrees pressure angle by 2.9063 in. Pd by 2.935 in. Major diameter by 2.854 in. Minor diameter by 0.500 in. Lg on one end