This is a A-604-3500 Tube, 2 1/8" Round (.120 Wall) PN: 604-3500Main Description As Following : A-604-3500 Tube, 2 1/8" Round (.120 Wall) PN: 604-3500 Found in Section & Models : Driveline > Driveline Components, Weasler Domestic: 35 Series, Driveline > Shafting & Tubing, Weasler Domestic: 35 Series Associated Items : New Also This is An Aftermarket Product And : Original Weasler part. Length: 3' Size: 2 1/8" (.120 Wall)