This Ball Joint Package is designed specifically for heavy-duty use, they will handle the toughest work that you can throw at them while delivering excellent performance. This Ball joint has a durable Black Oxide Finishing on it to resist corrosion and maintain performance integrity. All of our ball joints and rod ends come pre-greased and ready to install with premium Chevron Ultra EP2 Grease. Features: Heat treated 4140 Chromoly Stud Oversize Heavy Duty Internals Serviceable Grease Port Improved Strength and Rigidity over OEM Direct Press in Replacement Made in the USA Package of (4) Ball Joints Includes: 2- Kryptonite Lower ball joints (Part# KR0351) 2- Kryptonite Upper ball joints (Part# KR0316) Fits: 2014-2020 Dodge Ram 2500 4x4 Diesel Trucks 2013-2020 Dodge Ram 3500 4x4 Diesel Trucks