The Model M100 PTO Adapter is a PTO Quick Attach that will take so much work out of installing a PTO shaft on your tractor. I understand the need for the shielding, but this Quick PTO Adapter gives you the best of both worlds. I recommend this adapter! We are not paid for this and you can see it working in many of our new videos. WEBSITE: https://smallfarminnovations.com/product/model-m100-pto-adapter/ Our hassle-free PTO adapter will allow you to connect and disconnect your implements with ease! Rated for 125hp Shaft Size: 1-3/8” 6 splines Compatible with most USA-made tractors. EASY ON PTO Adapter Current horsepower rating 125 hp Rpm 540 Torque rating 1200 ft/lbs Constructed of 1018 and 1144 steel with 96,000 lbs of shear strength Shaft size 1-3/8” 6 spline