This kit contains the basic components needed to split and accurately rebuild two-stroke crankshafts. The universal center throw alignment jig can be set at either 180 deg.(for twin cranks) or at 120 deg. (for triple cranks). The toolmakers square is used for initial alignment of the outer throws. The rams are used for both splitting and reassembling the crankshaft. The splitting wedges are used for splitting the outer throws. Top Plate and Bushing sets are necessary.