This pillar post seal is designed specifically for the convertible body style of early 1987 Ford Mustang models built between January and September, fitting the left side only. Crafted with a smooth, flawless surface free of exposed cells, it ensures a clean and polished look while providing a snug fit to keep out wind, water, and debris. Its UV and sunlight-resistant material enhances durability, making it ideal for long-term use in various weather conditions. This seal is an essential replacement part for maintaining the integrity of your Mustang’s convertible top, ensuring a quieter and more comfortable ride. Backed by our 90-Day No Hassle Guarantee, you can trust its quality and performance.