Trimming of the bed support under your bed floor is required for clearance. Designed to give the maximum drop without cutting through your bed floor, installed hundreds of notches and fine-tuned these kits to make your life as easy as possible.
Chevrolet Silverado 99 - 2006 Weld in 4" Under Bed C-Notch Section Extreme Drop
Under Bed C Notch Weld In for Chevrolet Silverado 1500 99-06 Fit 6"-9" Drop Kit
Fit For 1999-2007 Chevrolet Silverado GMC Sierra 1500 Under Bed C Notch Kit
Fit For 99-07 Chevrolet Silverado GMC Sierra 1500 Under Bed C Notch Kit
[SR] Rear Axle Lowering Universal Mini Truck C Notch Kit / Under Bed Frame Notch
Underbed Bed C Notch Kit Fit For 1999-2006 Chevy/GMC 1500 Silverado Sierra NEW