I concur with the Samba Dude. While it would be nice to have them match spline count for spline count, when the clamping bolt is tightened to the proper torque (18 - 20 ft. lbs.) it clamps down on the splines, distorting them slightly and making a slip-proof connection. You may have to spread the jaws open with a screw driver to get it on, then just assemble the clamping bolt according to Hoyle, making the bolt line up with the flat on the shaft.