Use this 10-piece headlight adjustment spring replacement kit to effectively restore the stability and alignment performance of classic General Motors vehicles. Suitable for GM part number 3923948, compatible with Chevrolet and General Motors vehicles from 1968 to 1980, ensuring proper headlight installation and beam projection. Over time, original springs may rust, fatigue, or break, causing headlights to become loose or misaligned. This product includes 10 high-strength adjustment springs, suitable for replacing aged components across multiple light positions or for whole-vehicle maintenance. This kit is compatible with various headlight adjustment tools and mounts from General Motors, including those suitable for Chevrolet, Pontiac, Oldsmobile, Buick, and other brands, making it an ideal choice for classic car enthusiasts and repair technicians. Installation is straightforward, requiring no cutting or drilling, and can be easily completed using standard tools. The springs are made from rust-resistant metal materials, capable of withstanding harsh weather conditions, road salt, and high temperatures in the engine compartment, ensuring a long service life. Whether for vehicle restoration, headlight maintenance, or enhancing nighttime driving safety, this spring replacement kit is an indispensable choice.