Great CompatibilityThis rear 6″ drop lowering flip kit perfectly fits for Silverado GMC Sierra Trucks With 6 Lug Wheels 1999-2007 Classic 1/2 Ton.Practical FunctionThis rear axle lowering kit is specifically designed to increase the overall suspension travel of pickups or trucks. It performs excellently in keeping the rear of your truck below the typical 4″ to 5″ height quickly and conveniently.Easy OperationThis tool kit helps you reposition the shaft position quickly and safely without damage to other components. Please note that the hardware, springs and U-bolts can be reused during manipulation.Superior ConstructionBuilt of high quality, heavy duty steel and plated with slick black coat to prevent corrosion and rust, which is impact resistant and wear resistant. C-grooves are accurately manufactured to match the frame rail profile of the Chevy and GMC 01-07 Truck (classic body style) for tight fitment, and they are fully bolted and do not requireering.Package List1 x6″ Rear Axle Lowering C Notch Flip KitMore Picture Details6” Rear Axle Flip Frame C Notch Drop Lowering Kit Application1999-2006 – for Silverado 15001999-2007 – for GMC Sierra 15001999-2007 Classic 1/2 Ton – for Chevy Silverado GMC Sierra Trucks With 6 Lug Wheels6″ Rear Axle Lowering kit – Help keep the rear of your truck below the typical 4″ to 5″ height.