2024-25 GMC Sierra 2500/3500 Behind the Grill 40 inch Light Bar Mounts Key Features: 3D CAD Designed for a OEM Quality Fit and Finish Designed to hold Baja Designs 40 inch S8 Light Bars Has mounting provisions for 00-1202-S2 Brackets No Trimming of the Grille or Grille Mount is required for fitment No Drilling Required Thick Steel Plate Construction for Durability Mounting slots for adjustability Difficulty of Installation: Easy Light Fitment:Baja Designs 40 inch S8Baja Designs S2 Sport or Pro utilizing SDHQ-00-1202-S2 brackets, minor trimming of grille shutter blades may be needed to create clearance for 3/8 inch mounting bolt.Other lights may be compatible, but their fitment has not been confirmed in-house. For size reference, please check the manufacturer's specifications and compare them with the lights we have verified.Wiring: Switch Pros with SDHQ Mounting Solutions recommended for the Ultimate Install Air on board switches are recommended for Basic Installs. Vehicle Fitment: 2024-2025 GMC Sierra 2500/3500 Does Not Fit: 2019 GM 1500 Does Not Fit: 2024 Chevrolet 2500/3500 ✅ Vehicle Compatibility 2024 - 2025 GMC Sierra 3500 HD AT4 2024 - 2025 GMC Sierra 2500 HD AT4 2024 - 2025 GMC Sierra 2500 HD AT4X 2024 - 2025 GMC Sierra 3500 HD Denali 2024 - 2025 GMC Sierra 2500 HD Denali 2024 - 2025 GMC Sierra 2500 HD Denali Ultimate 2024 - 2025 GMC Sierra 3500 HD Denali Ultimate 2024 - 2025 GMC Sierra 3500 HD Pro 2024 - 2025 GMC Sierra 2500 HD Pro 2024 - 2025 GMC Sierra 2500 HD SLE 2024 - 2025 GMC Sierra 3500 HD SLE 2024 - 2025 GMC Sierra 2500 HD SLT 2024 - 2025 GMC Sierra 3500 HD SLT