Posted by Drom68
"Harvey, from the pictures it looks like it is an 8 spline piece with two splines combined to make the one large spline/keyway. Not sure if you have a dividing head or rotary table but you could use one of them to make what is needed to broach the splines. You could broach all 8 splines and then remove the section between two of the splines to make your one large one."
Drom,
An evenly-spaced 8-spline pattern won't work. Each spline in an even-numbered pattern will have another spline exactly across from it on the other side of the circle. If you'll take a close look at the picture, you'll see that on my splined shaft, no two splines are opposite each other. You had a good thought though and I appreciate your input.
Harvey