This is a A-300-1400 Shaft Weld Yoke (w/ Bearing Groove) PN: 300-1400Main Description As Following : A-300-1400 Shaft Weld Yoke (w/ Bearing Groove) PN: 300-1400 Found in Section & Models : Driveline > Driveline Components, Weasler Domestic: 14 Series, Driveline > Yokes, Weasler Domestic: 14 Series Associated Items : New Also This is An Aftermarket Product And : 14 series shaft weld yoke with bearing groove. Yoke has 1" x 1-1/8" rectangular bore. Original Weasler part. Bore: 1" x 1 1/8" Rect.