Three piece aluminum spacer kit for Moroso drive mandrels Compatible with the following Moroso mandrels; 63841, 63843, 63844, 63845, 63846, 63847, 63848, 63849, 63853, 63857, 63858, 63859, 63860, 63880, 63881, 63882, 63883, 63884, 63885, 63886 and 63887 Use for alignment of drive pulleys with belt driven accessories Includes one 1/4", one 3/8" and one 1/2" thick spacer 1" I.D. with 1/8" key