This is a A-528676R1 Shaft, IPTO Drive PN: 528676R1Main Description As Following : A-528676R1 Shaft, IPTO Drive P.N: 528676R1 Check degree of angle on gear teeth before ordering.Dim C (3): Teeth are 25 degree angle.Spline: 17 , 1.750" Dia.Teeth: 28 Replaces: 528676R1-R IH , Crossed From: WN-528676R1 , , WN528676R1 , , 108882 , , 1712-9000 , , 528676 AG PARTS Found in Section & Models : PTO Parts > PTO and Related Parts, Case-IH INDUSTRIAL/CONSTRUCTION: 2756, Case-IH INDUSTRIAL/CONSTRUCTION: 2856 (Farmall SN 27287> / International SN 9493, Case-IH TRACTOR: 1066 (SN <22999), Case-IH TRACTOR: 1086, Case-IH TRACTOR: 1456, Case-IH TRACTOR: 1466 (SN <14999), Case-IH TRACTOR: 1468 (SN <8999), Case-IH TRACTOR: 21456, Case-IH TRACTOR: 3088, Case-IH TRACTOR: 3288, Case-IH TRACTOR: 3688, Case-IH TRACTOR: 756 (Farmall SN 17636> / International SN 8425>), Case-IH TRACTOR: 766 (Gas SN <10934 / Diesel SN <8999), Case-IH TRACTOR: 786, Case-IH TRACTOR: 826, Case-IH TRACTOR: 856 (Farmall SN 27287> / International SN 9493>), Case-IH TRACTOR: 886, Case-IH TRACTOR: 966 (SN <17000), Case-IH TRACTOR: 986 Associated Items : A-380101R2, A-70227C91 Also A-IH-P-ENG6CYLG, A-IH-P-7562756, A-IH-S-ENGD155, A-IH-S-ENG6CYLG, A-IH-S-706756, A-SMIH32, A-IH-P-8562856, A-IH-S-806, A-SMIH32, A-IH-O-BATTIGN, A-IH-O-1066, A-IH-O-766966, A-IH-P-ENG56CYL, A-IH-P-766966, A-IH-S-AIRHEAT, A-IH-S-ENG3400, A-IH-S-TOOLSLATE, A-IH-S-TUNELATE, A-IH-S-766966, A-MW-P-TENDER And : Check degree of angle on gear teeth before ordering. Dim C (3): Teeth are 25 degree angle. Spline: 17 , 1.750" Dia. Teeth: 28