Cold-forged for superior strength. When installing torque all 3/4 shank balls to 160 ft. lb. all 1 to 250 ft. lb. and all 1-1/4 to 450 ft. lb. Balls with longer shanks are designed for use with step bumpers. Engineered to meet all safety requirementsof VESC regulation V-5.null TRAILER HITCH BALLS STANDARD LIFT - CHROME SOLID STEEL REESE 2000-LB CAPACITY 1-7/8 Ball Diameter - Carded Shank Dia x Lgth=3/4 x 1-1/2.