Spicer 2-53-711 Splined Midship Tube Shaft 1.375x16 spline, Ø3.000 X .083 tube General Design Type For use with Outboard Slip Yokes Spline Major Diameter D 1.375 Spline Count 16.000 Spline Type 15 Based On 16 Spline Bearing Diameter C 1.378 Tube Diameter and Wall Size 3.000 X .083 End of Spline to Bearing Shoulder Y 7.969 End of Spline to Point of Weld K 9.031 Length of Spline L 2.500 Thread Size Shoulder Diameter B 1.688 Length of Shoulder G 0.812 Notes May use boot 211916X or dust cap 211121X, order separate