This is a A-400-0015 Shaft, 15/16" Square PN: 400-0015Main Description As Following : A-400-0015 Shaft, 15/16" Square PN: 400-0015 Found in Section & Models : Driveline > Driveline Components, Weasler Domestic: W SERIES, Driveline > Shafting & Tubing, Weasler Domestic: W SERIES Associated Items : New Also This is An Aftermarket Product And : Original Weasler part. Fits Tube: 1 1/4" Sq. Length: 6' Size: 15/16" Sq.