Description Lift Arm Ball Socket, Cat 3, Standard Duty, 1-7/16" ID, 1-3/4" bore length, 1-5/16" sleeve width, 3-1/2" OD, Black Oxide finish. Will replace R299 Reynolds This item is a suitable alternative for the following: 873-2231, 2472B2231, 30546E1, 30546E91, A-BS15, ABS15, B2231, R299, SMAR299