Pto Conversion Shaft Massey Ferguson Tractor To20 To30 181173M1 100% new PTO conversion shaft meets OEM quality for tractors and farm equipment 1-year warranty covers you throughout planting and harvesting seasons Factory direct pricing delivers an honest value for hard-earned money Replaces OEM Numbers: Massey Ferguson: 181173M1 Specs: Description : PTO Conversion Shaft, Length : 30 7/8", Outside Diameter 1 : 1 3/8", Outside Diameter 2 : 1 3/8", Spline Count 1 : 6, Spline Count 2 : 10