BACKRACK(TM) has doubled the corrosion resistance on the Louvered Rack by E-Coating the Frame before Powder Coating. Being unsatisfied with the Powder coverage in tight areas of the Louver assembly, BACKRACK(TM) does it right by immersing the entire Frame into a multi stage dip process to cover every hidden surface.\nLOUVERED RACK - 2019 (New Body Style)-2021 Chevy Silverado/GMC Sierra 1500/2007-2018 (2019 Legacy/Limited) Chevy Silverado/GMC Sierra 1500/2007-2018 2500 HD/3500 HD/2004-2021 Ford F-150/2008-2021 Toyota Tundra\nNOTE: Replaces part number 12500\n2019-2021 Chevrolet Silverado 1500, 2019-2021 Chevrolet Silverado 1500, 2019-2021 GMC Sierra 1500, 2019-2021 GMC Sierra 1500