An excavator wear assembly comprising a mounting nose having a rear bearing face, a forward bearing face, an upper bearing face disposed at an angle between the rear bearing face and the forward bearing face, a front face substantially perpendicular to the forward bearing face and a rib extending over at least part of the upper bearing face, forward bearing face and front face; and a wear member having a rearwardly opening socket adapted to receive the mounting nose, the socket being at least partially defined by a top wall and a front wall, the wear member having a recess formed in the top wall and front wall adapted to receive at least part of the rib.