This is a A-817-3506 Clamp Yoke PN: 817-3506Main Description As Following : A-817-3506 Clamp Yoke PN: 817-3506 Found in Section & Models : Driveline > Clutch, Weasler TORQMASTER: 35 SERIES Associated Items : New Also This is An Aftermarket Product And : Original Weasler part. Bore: 1 3/8" x 6 Spl.