The Super-C Notch is the only way to fly. I put mine in years ago, and I only run a 6" rear drop. I could not stand hearing/feeling the rear-end hitting the frame, while going over small bumps, with even a tiny bit of weight in the bed. The half-tons really have soft springs & a wimpy frame, but they ride nice, lol. Forget the brand, but the Super-C section I bought was just like the one in the link above, but all the pieces were welded together when they came in the box. I also trimmed the little bed support rail just over the rear-end pig, so it wouldn't hit either. I bought & installed red Energy Suspension brand urethane frame stops, which are a bit shorter than the factory ones too. Then I installed Air-Ride rear air bags, with the air lines exiting right behind my flip-up license plate, which hides the hidden Class 2 reciever hitch.