This is a A-300-0600 Shaft Weld Yoke (w/ Bearing Groove) PN: 300-0600Main Description As Following : A-300-0600 Shaft Weld Yoke (w/ Bearing Groove) PN: 300-0600 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 : Shaft weld yoke with bearing groove. 3/4" x 7/8" bore. Used with shaft A-D401214. Use W/ Shaft Part# D401214 Original Weasler part. Bore: 3/4" x 7/8"