This is a A-1808810M2 Drive Shaft, PTO Main PN: 1808810M2Main Description As Following : A-1808810M2 Drive Shaft, PTO Main P.N: 1808810M2 Dim A (1): 23 TeethDim B (2): 25 SplineReplaces: 1808811M92 Crossed From: 1808811M92 MASSEY FERGUSON Found in Section & Models : PTO Parts > PTO and Related Parts, Massey Ferguson TRACTOR: 1080 (W/ MULTI-POWER & 6 Speed TRANS), Massey Ferguson TRACTOR: 1085 (W/ MULTI-POWER TRANS), Massey Ferguson TRACTOR: 285 (W/ MULTI-POWER TRANS) Associated Items : A-3699909M1, A-883935M1 Also A-FRM-MH, A-MH-O-MF1080, A-MH-P-MF1080, A-MH-S-MF1080, A-SMMF201, A-MH-O-MF1085, A-MH-P-MF1085, A-MH-S-MF1085, A-SMMF201, A-MH-O-MF285, A-MH-O-MF285LATE, A-MH-P-MF285, A-MH-S-MF285 And : Dim A (1): 23 Teeth Dim B (2): 25 Spline Replaces: 1808811M92