IH Industrial - Fits: I6, ID6
International / Farmall - Fits: F20, M, MD, MDV, MV, O6, ODS6, OS6, Regular (SN: 39405 and up), Super M, Super MD, Super MDV, Super MV, [ Super W6, Super WD6 (both up to SN: 9084) ], T20
Minneapolis Moline - Fits: ZB, ZBE, ZBN, ZBU
Spline diameter: 1-1/2"; 10 splines; 10-3/4" long; 0.965" pilot O.D.