This is a A-101-5521 Safety Slide Lock Tractor Yoke PN: 101-5521Main Description As Following : A-101-5521 Safety Slide Lock Tractor Yoke PN: 101-5521 Found in Section & Models : Driveline > Yokes, Weasler Domestic: 55 Series Associated Items : A-13004000 Also This is An Aftermarket Product And : 55 Series Safety Slide Lock Tractor Yoke. 1-3/8" 21 Spline Yoke. Original Weasler part. Bore: 1 3/8" - 21 Spl.
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