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When did Chevy trucks switch to square headlights?

Chevrolet trucks transitioned to square headlights in the late 1970s, with the introduction of the C/K series in 1973. This marked a significant shift from the previous round headlight design that had been a hallmark of Chevy trucks for decades.


The Transition to Square Headlights


Chevrolet's decision to switch to square headlights for its trucks was driven by a combination of factors, including changing consumer preferences, advancements in lighting technology, and evolving safety regulations. The square headlight design was seen as more modern and aggressive, aligning with the growing demand for a more rugged and capable truck aesthetic.


The transition to square headlights began with the introduction of the C/K series in 1973, which replaced the previous generation of Chevy trucks that had featured the iconic round headlight design. The C/K series, also known as the "Rounded Line" or "Rounded-Line" trucks, were produced from 1973 to 1987 and were the first Chevy trucks to feature the square headlight configuration.


The Reasons Behind the Change


There were several key reasons why Chevrolet decided to switch to square headlights for its trucks:



  • Changing Consumer Preferences: As the truck market evolved, consumers were increasingly drawn to a more rugged and aggressive aesthetic, which the square headlight design helped to convey.

  • Advancements in Lighting Technology: Newer lighting technologies, such as halogen bulbs, allowed for more efficient and effective square headlight designs that could provide better illumination and visibility.

  • Evolving Safety Regulations: Changing safety regulations, particularly related to headlight design and performance, also played a role in Chevrolet's decision to transition to square headlights.


The square headlight design became a defining feature of Chevy trucks throughout the 1970s and 1980s, helping to establish a distinct and recognizable look for the brand's lineup of pickup trucks.

Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.