Product Description: Catfish Pond Driveline Assembly, size 6. Driveline minimum C-to-C is 41" (1041 mm), maximum C-to-Clength is 62" (1580 mm), and total collapsed length is 48" (1230 mm). Tractor ends: 1-3/8" 21 Spline and implement ends are 1-1/2" round bore with 3/8" keyway. Driveline rated as category 4 (100 hp). It may be necessary to cut this driveline to length. Verify the length by ensuring that sufficientoverlap of the drive tubes exists in all working positions without the possibility of bottoming out.