Dealing with rear A/C problems in your GMC Acadia? This block off kit is exactly what you need to get your front air conditioning working properly again without replacing the entire rear system. Specifically designed for 2007-2015 GMC Acadia models with those peanut-style fittings that use sealing washers and dual nuts/bolts. The installation happens in the front wheel well areas where the rear lines connect to the front system - these fittings basically seal off the rear lines so refrigerant stays in the front system where you need it. Made from high-quality aluminum that resists corrosion and lasts for years, this USA-engineered kit comes complete with all the O-rings, sealing washers, nuts and bolts you need for the job. The real savings comes from avoiding those crazy expensive rear air conditioning line or evaporator replacements that can cost hundreds at the dealership. Your front A/C will blow cold air like it's supposed to, especially important in those larger vehicles where you need that cooling power up front. While professional installation is recommended if you're not comfortable with A/C work, the design is straightforward for experienced DIYers. Just make sure your Acadia is within the 2007-2015 model range and has the right style fittings before ordering. This is one of those smart fixes that saves you a ton of money while getting your air conditioning working properly again. No more sweating through summer drives because your rear A/C system is causing problems for the whole vehicle.