Abstract: An apparatus for separation of a pre-form into a bearing cap and a connecting rod by fracturing the pre-form along a predetermined fracture line. The apparatus includes a split mandrel defining upper and lower parts sitting within a cylindrical aperture of the pre-form and defining an internal passageway within which a wedge moves to separate the mandrel halves. Separation of the mandrel halves by the wedge member causes fracture separation of the pre-form into a bearing cap and connecting rod. A bottom portion of the mandrel is adjustable in relation to the wedge member to provide for proper alignment of the wedge and mandrel during fracture separation of the connecting rod.