This is a A-813-0600 Slip Sleeve Implement Yoke PN: 813-0600Main Description As Following : A-813-0600 Slip Sleeve Implement Yoke PN: 813-0600 Found in Section & Models : Driveline > Driveline Components, Weasler Domestic: 6 SERIES, Driveline > Yokes, Weasler Domestic: 6 SERIES Associated Items : New Also This is An Aftermarket Product And : Original Weasler part. Bore: 3/4" x 7/8" Rect. Length: 5 1/2"