One replacement PTO yoke that is a 1-3/8" smooth bore with 1/2" shear bolt holes for use on HD Series 6 Rotary Cutter PTO shafts. We use these Series 6 Yokes for HD-3-Point Rotary Cutter PTO shafts and on Pull Type Rotary Cutter Shafts for gearboxes that are shear bolt protected. We also can supply complete Heavy Duty Series 6 Shear Bolt PTO shafts, they can be found in our online store. Specifications: Series 6 1-3/8" Smooth Bore Yoke with 1/2" Shear Bolt Holes Accepts 30.2mm X 92mm Series 6 Cross Kit Replaces: 84069 We sell many replacement rotary cutter parts. If you don't see the parts you need listed please contact us we would love to earn your business. We are listing new items frequently so please check our store often. We stock a wide variety of replacement parts for Agricultural Equipment please contact us if you have any questions or if you would like more information.