Description Heavy Duty Category 1 Top Link Weld On Ball Socket - Fits all Category 1 Top Links - 2 1/4" O.D. sleeve, 9/16" outer width, 3/4" pin hole, 1 3/8" thru bore.Top Link Ball Socket, Cat 1, Heavy Duty Duty, 3/4" ID, 1-5/8" bore length, 7/8" sleeve width, 2-1/8 This item is a suitable alternative for the following: 873-212, 2472B212, B212, P15-03