Belltech 6613 C-Notch Kit Belltech C-Notch Kits are bulletproof over-engineered frame modification and reinforcement systems that allow for additional compression or upward travel of your rear suspension, essential in limiting bottoming out C-Notch Kits are manufactured with heavy duty stamped steel contoured to match the factory frame rails All kits feature a durable powder coat finish and the highest quality hardware using grade 8 fasteners Specifically made for your vehicle with guaranteed fitment OEM ride quality with added performance, control and comfort