![Rear Coil-Spring Insulator For Buick Riviera 1966-1975, Skylark 1967-72; BN 111 'Replacement Filter'] High clearance Cat-Back(tm) system tucks](https://cdn.shopify.com/s/files/1/0590/5131/1259/files/BN111_1.jpg?v=1778536436)
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Ships within 48 hours · Estimated delivery Aug 12 - Aug 17
High clearance Cat-Back(tm) system tucks above frame rails
Ease of Installation: Simple to attach for quick upgrades
featuring a 1/2-inch wide bottom flange
the WeatherTech DigitalFit liner is designed to withstand harsh conditions
Designed without harmful PVCs
Rear Coil-Spring Insulator For Buick Riviera 1966-1975, Skylark 1967-72; BN 111 'Replacement Filter'] High clearance Cat-Back(tm) system tucksFor classic cars like the 1961 1976 Pontiac Bonneville, Catalina, Grand Prix, and others, as well as the 1967 1972 Chevrolet Chevelle, El Camino, and Buick Skylark, these rubber coil spring insulators are essential for a smooth and quiet ride. Measuring 3 3 4 inches in outer diameter, 2 1 8 inches in inner diameter, and 5 8 inches high with a 3 16 inch wide bottom flange and 1 4 inch thickness, they are designed to fit precisely between the coil
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