PTO Shaft to fit New Holland Dis Mower Discbines Our drive shafts for PTO can be adjusted to the following models of disc mowers: New Holland Discbines 1431and 1432 Model 411 1409, 1410 1411 14, 1411, 1441, 1442 14, 1431, 143 H7220, H7230, H7320, H7330, H7450, H7460, H7550, H7560 IH DC 132, Case IH DC 132 Parts of Pto Shafts. Pto Shaft It is important to know the dimensions, measurements horsepower, sizes, and the agriculture PTO shaft components in order to select the right PTO shaft for your farm equipment. Although the U-joints and yokes are required for operation however, the safety chains as well as the shield are vital components in the PTO shaft to ensure you are secure during operation. Internal Yoke: There are two located on both sides of the PTO shaft: implement and tractor. It is joined on the end of the drive. Universal Joint- There are two joints at both ends of the PTO shaft. External Yoke- There is a second on both sides on the PTO shaft. It's got an "Y" shape that connects to the U-joint, and an opening for females. Safety Chains - The chains ensure the PTO shaft to the equipment as well as the tractor. Safety ShieldCones placed at both the ends. Different Models PTO Shaft for Sale Every discipline has several PTO shafts as well as the combination clutch. The different types of PTO shafts and locations for clutches differ from model to model. Models below were initially fitted by Weasler as well as Bondioli & Pavesi PTO shafts. Post Hole Digger Parts.