Add Wish List Quick view Choose Options Crown Suspension 1999-2007 Silverado Sierra NBS 5/7 Lowering Drop Kit - Crown Suspension 1999-2007 Silverado Sierra NBS 5/7 Lowering Drop Kit PRODUCT BRAND: Crown Suspension WHAT YOU GET:2" Lowering Spindles 2009203" Lowering Springs 3509307" Rear Flip Kit 400960 / 400960C / 510520Note:Does not include u-bolts. this kit uses... MSRP: $690.00 Choose Options Compare