10-3-18KX, Slip Yoke 1000 Series, 1.250×16 spline 5.500 + 2-40-971, spline 1.750 x 0.65″ 

Slip Yokes
Series	1000 (0.938 x 1.500 I/C)
Spline	1.250×16
Centerline to End of Spline	5.500

• U-Joint Series 1000 Spline Major Diameter 1.250 Spline Count 16.000 Max Joint Angle 60.000 Universal Joint Retaining Width E 1.500 Universal Joint Bearing Diameter D 0.938 Centerline of Joint to End of Spline J 5.500 Centerline of Joint to Face of Plug F 1.562

Splines
Spline	1.250×16
Tube	1.750 x .065
(K)	4.469
(L)	2.000
(R)	3.938
(B)	1.625

• Spline Stub 1.250×16 spline, 1.750 X .065 Tube