These Tow Mirrors are designed to replace the factory mirrors and will install just as the originals do. They make perfect replacements with great upgrades that have good cost savings over the dealer parts.. Fitment: 2007-2013 Chevy Silverado 1500/1500HD/2500HD 2007-2014 Chevy Silverado 3500/3500HD 2007-2013 Chevy Suburban 1500/2500 2007-2013 GMC Sierra 1500/1500HD/2500/2500HD 2007-2014 GMC Sierra 3500/3500HD 2007-2013 GMC Yukon/Yukon XL 1500/ Yukon XL 2500 2007-2013 Chevy Avalanche 2007-2013 Chevy Tahoe (For all above model - Do not fit 2007 Classic models and 2014 New Body Style models) (Will not fit models with power folding mirror.) Mirrors Can Be Extended Out Manually To Provide A Wider Angle Of Rear View. OE Fitment or Replacement for the Stock Unit Extends by Telescoping / Manual Folding Mirror Dual Glass Type : Includes Spotter Glass Mirror, Improve Visibility on Blind Spot During Daily or Towing Activities A Heavy Duty Truck Needs A Heavy Duty Mirror, It Will Dramatically Increase Both Your Vehicle's Appearance & Value Driver side only POWER operation mirrors with HEAT. Full extended length : 21" / Closed length : 17". (from base) Mirror glass size : 12" x 7.5".