Splines
Spline	1.750x16
Tube	3.500 x .095
(K)	6.781
(L)	3.000
(R)	5.812
(B)	3.321

Spline Major Diameter 1.750 Spline Count 16.000 Tube Diameter and Wall Size 3.500 X .095 End of Spline to Weld K 6.781 Length of Spline L 3.000 End of Spline to Radius R 5.812