Headlight Upgrade for Your 2005 GMC Sierra 1500 – Tresses Length Blog tresseslength.com

Fitment can vary slightly – While most aftermarket assemblies are advertised as “direct fit,” some owners report minor gaps or alignment issues. Reading recent reviews for your specific truck model is highly recommended.

Adjustment is necessary – After installation, you must aim your new headlights properly. Park 25 feet from a wall on level ground, mark the height of your headlight centers, and adjust the vertical aiming screws until the beam cutoff sits just below that line.

Bulbs may not be included – Many aftermarket housings do not include low beam or high beam bulbs. You will need to purchase 9005 (high beam) and 9006 (low beam) bulbs separately unless the product description states otherwise.