This is a A-600-6343 Outer Tube PN: 600-6343Main Description As Following : A-600-6343 Outer Tube PN: 600-6343 Found in Section & Models : Driveline > Driveline Components, Bondioli & Pavesi 100 Series: Size 3, Bondioli & Pavesi 100 Series: Size 4, Driveline > Shafting & Tubing, Bondioli & Pavesi 100 Series: Size 3, Bondioli & Pavesi 100 Series: Size 4 Associated Items : New Also This is An Aftermarket Product And : Weasler alternative to original part. Dim B (2): 43.5 MM Length: 59 1/16" - 1500 mm Series: BP 3 & 4