Review on 🔩 Tow Ready 228.1073 Reese 63840 Class V Hitch Ball - 2-5/16" Ball x 1-1/4" Shank x 2-3/4" Shank Length - High Capacity Chrome Hitch Ball - 20,000 lbs. GTW by Mike Bigglesworth

That's just a solid clutch. Note the size, this is a 1 1/4" shank so you will need a 1 7/8" socket to tighten this nut. The clutch instructions say 400 ft.lbs. To tighten the nut to this level you will need a large 3/4" torque wrench. You may also need a sturdy friend and/or a piece of pipe. Take the flat side of the ball skirt and let it come up the back of the truck a little 2x4 while me and a friend put pressure on the end of the torque wrench, we just did it.