The door hinge connects the door to the body of the vehicle enabling it to rotate when opening and closing. used a roller style detent door hinge that deteriorates over time causing it to corrode and give a hard time opening and closing the door, produce loud squeaks or clunks even if greased properly every now and then. The driver side lower door hinge can easily be located on the door hinge and can be replaced by removing the door. However, some parts like the cover trims, wire harnesses need to be removed before doing so. The replacement door hinge isn't painted but coated with zinc for resistance to corrosion. After installation, shut the door slowly and make sure that it aligns properly or if adjustments are needed to be made. Fits the following vehicles: 2007-2014 Escalade 2007-2014 Escalade ESV 2007-2013 Escalade EXT 2007-2013 Avalanche 2007-2013 Silverado 1500 2007-2014 Silverado 2500 HD 2007-2014 Silverado 3500 HD 2007-2014 Suburban 1500 2007-2013 Suburban 2500 2007-2014 Tahoe 2007-2013 Sierra 1500 2007-2014 Sierra 2500 HD 2007-2014 Sierra 3500 HD 2007-2014 Yukon 2007-2014 Yukon XL 1500 2007-2013 Yukon XL 2500 Replaces part numbers: 20969645, 15877405, 15824876, 20876296, 15791370, 20876298, 25958196, 25854410 This is a compatible replacement part manufactured by AA Ignition. This door hinge is NOT a genuine OEM part. Vehicle makes and their associated vehicle models and part numbers are used in this listing only to identify the vehicles this door lower hinge fits.