Our 99-06 underbed notches are CNC plasma cut in house out of 1/4 plate. Our notches come pre welded and ready for a easy install. These are made to clear a 8" drop with no problem.
These notches are designed to make the install easier for you and less of a hassle, by being made to perfectly silde onto the frame and give you a "self locate". 
 
- Made to specific vehicle
- Cutting and welding is required