Upgrade your classic Chevy with the 1963 Chevrolet Fullsize Wire Harness and Lead Wires Front Light Harness - ALTPI. Designed specifically for 1958 and later models, this high-quality wiring solution enhances connectivity and reliability for your vehicle's lighting system. What sets this front light harness apart is its modification for a passenger-side 1985 and earlier SI series internally regulated alternator, ensuring optimal performance and compatibility. Say goodbye to faulty wiring and hello to a brighter, safer ride!