This is a A-604-6343 Outer Tube PN: 604-6343Main Description As Following : A-604-6343 Outer Tube PN: 604-6343 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. Length: 39 3/8" - 1000 mm Series: BP 3 & 4