Upgrade your classic Buick Skylark, Special, or Gran Sport with our premium Rear Window Defroster Extension Harness. Designed specifically for 1973 and 1974 models, this harness ensures optimal performance of your rear window defroster, providing you with improved visibility during cold weather. Unlike generic alternatives, our precision-engineered extension harness guarantees a perfect fit and reliable connectivity, keeping your rear window clear when you need it most.