Fitment: Compatible with 2007-2020 Chevy Silverado 1500 2WD 4X4. Compatible with 2007-2020 GMC Sierra 1500 2WD 4X4 Material: High-quality steel with powder-coated black finish Function: Flips the rear axle from below-leaf to above-leaf position, delivering 5-6" drop while maintaining correct pinion angle and spring travel Installation: Bolts to factory leaf-pack and frame holes using supplied U-bolts and plates—no welding or cutting required Package: 1 × Rear Drop Axle Flip Kit and hardware shown in the images. No instructions included