Product Description: New 400 Series Constant Velocity Tractor Shaft. C-to-C length: 40" (1010 mm). Tractor end: 1-3/8" -6 Spline. Replaces Bondioli & Pavesi No. BP4CV8TR101001. Fits Bondioli & Pavesi 400CV Series: Size 8 CV. Please refer to the Complete Driveline section of this catalog to see our full range of completeshafts.