That workholding kit predates the Shapeoko 5 Pro, and the spacing of the Hybrid T-tracks is different for the SO5 Pro than for the machines which were available when it was released. Please contact us at support@carbide3d.com and we’ll see what can be worked out.
The parts are injection-molded, so not so precise that they are directly suited for some folks — if need be, you can machine the elements after bolting them to the machine so that they are square to the machine motion.