Introduction In 1988, Chevrolet made a profound impact with its fourth-generation RWD pickup truck model, the C1500, also known as the OBS (Old Body Style). Renowned for their robust build and enduring popularity, these trucks symbolize strength, reliability and versatility. And the OBS is a fantastic platform for performance improvements. The fourth-generation C1500, a significant step forward from its predecessor, brought notable improvements in performance, comfort, and technology. Its design,…