Alignment Tool Specification: Spline Dia 1 3/8" Spline Count 10 Pilot Dia 0.59 AT25 Application: BM 540i 1997-1998 4.4L 8cyl 850ci 1995-1996 5.4L 12cyl 850csi 1994-1995 5.6L 12cyl 850i 1991-1994 5.0L 12cyl M3 2001-2006 3.2L 6cyl