Gen-Y EXECUTIVE TORSION-FLEX Rhino 5th Wheel King Pin 2.5K-4.5K pin 30K Towing Model GH-8051Gen Y EXECUTIVE TORSION FLEX Rhino 5th Wheel King Pin 2. 5K 4. 5K pin 30K Towing Model GH 8051 The EXECUTIVE is the best riding fifth wheel pin box on the market. By isolating the truck from the fifth wheel trailer with TORSION FLEX technology, the shock transfer is eliminated by up to 90%. This not only results in an incredibly smooth ride for truck and RV, but it also gives the driver much more steering control. Customers have also reported many