Taillights Tail Lamps For Chevy Chevrolet Silverado 1500 2500 3500 1999-2006 & 2007 with Classic Body Style GMC Sierra 1500 2500 3500 1999-2002 (Do Not Fit Barn Door/Stepside Models)Category: Chevrolet Silverado Long BoxSpecification:Quantity Sold: Set of 2Light Source: Use original light bulbs(Bulbs are not included)Surface finish: Black housing w/ smoke lensLocation: Mounts using factory mounting locationsProduct Fit: CAD designed to provide a perfect, factory type fitWeather Sealed: Completely weather sealed to keep the elements outReplaces Original (OE) Part #: 19169017, 19169018, 19169004, 19169005, GM2800174, GM2801174, GM2800186, GM2801186Fitment:For 1999-2006 Chevy Silverado 1500For 1999-2006 Chevy Silverado 2500For 2001-2006 Chevy Silverado 3500For 2007 Chevy Silverado with Classic Body Style (will NOT FIT other models!!!)For 1999-2002 GMC Sierra 1500For 1999-2002 GMC Sierra 2500For 2001-2002 GMC Sierra 3500 Package Include:1 Pair Tail Lights (Left & Right Side) & 4 Clips Things you'll need:1. Trim panel removal tool, socket wrench, or screwdriver (depending on the fasteners used in the assembly);2. Tail light assembly that matches your vehicle's specs.Installation:Step 1. Remove the old tail light. First thing you have to do is undo the mounting screws on the outside, if there’s any. You’ll have to open the trunk or any rear door or opening on the vehicle to access the back of the tail light. The wiring harness must be disengaged from the assembly through its back. Once the wiring harness is out, you can now undo the mounting screws or nuts, whatever fastener is used. With no more screws or nuts holding it in place, you can push out the assembly from behind.Step 2. Check if the tail light assembly you just removed is the same as the new one. See if they have the same components, design, and fasteners to ensure proper fitting.Step 3. Fix the new assembly into the tail light pocket. Once it’s fitted into place, secure it with the screws or nuts. Tighten them properly. You can now plug in the wiring harness that you removed earlier.Step 4. Test the new assembly. Switch on the tail lights to see if they work. If not, then some adjustments should be done to the newly installed tail light kit.Step 5. Put back any cover, trim, or component that was removed to access the tail light assembly.