A universal digging tooth attachment apparatus adapted to be secured to a forward edge of a bucket lip of an earth moving implement. The universal digging tooth attachment has a first element with an elongate section defining a first generally planar surface for abutting and engaging along the length thereof with one face of the bucket lip of the earth moving implement and a second element. The second element has an elongate section defining a second generally planar surface for abutting and engaging along the length thereof with the bucket lip of the earth moving implement directly opposite from the elongate section of the first element. One of the first and second elements has an earth engaging tooth projecting therefrom. A slip joint operably connects the first and second elements to each other to allow for adjustment of a distance between the first and second planar surfaces to accommodate attachment of the digging tooth to implements having bucket lips of differing thicknesses.