{"product_id":"moog-cc621-coil-spring-set-rear","title":"Moog CC621 Coil Spring Set - Rear","description":"\u003ch2\u003eMoog CC621 Coil Spring Set Overview\u003c\/h2\u003e\u003cp\u003eThe Moog CC621 coil spring set is engineered for reliable suspension performance on select Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models. Designed with precision, these variable rate coil springs provide consistent handling and ride quality for vehicles like the Bonneville, Caprice, and Fleetwood.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eVariable rate coil springs with a spring rate of 175 lbs per inch\u003c\/li\u003e\n\u003cli\u003eWire diameter of 0.67 inches (17.10 mm) for durability\u003c\/li\u003e\n\u003cli\u003eBlack spring color for corrosion resistance and aesthetic consistency\u003c\/li\u003e\n\u003cli\u003eFront and rear spring outside diameter of 6.870 inches\u003c\/li\u003e\n\u003cli\u003eFree height of 16.70 inches (424.20 mm) and compressed length of 12.75 inches (323.90 mm)\u003c\/li\u003e\n\u003cli\u003ePigtail end type for secure fitment\u003c\/li\u003e\n\u003cli\u003eLoad capacity of 640 lbs per spring\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eTechnical Details and Specifications\u003c\/h2\u003e\u003cp\u003eThe Moog CC621 coil spring set features a variable rate design, allowing the springs to adapt to different load conditions for improved ride comfort and handling stability. Each spring has a wire diameter of 0.67 inches (17.10 mm) and an outside diameter of 6.870 inches, ensuring compatibility with the suspension systems of various GM vehicles. The free height measures 16.70 inches (424.20 mm), while the installation height compresses to 12.75 inches (323.90 mm), providing the necessary travel for effective suspension response. Both front and rear springs share identical dimensions and pigtail end types, facilitating straightforward replacement.\u003c\/p\u003e\u003ch2\u003eCompatible Vehicles and Applications\u003c\/h2\u003e\u003cp\u003eThis coil spring set is compatible with a range of GM models, including:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eBuick LeSabre, Riviera, Roadmaster, and Electra\u003c\/li\u003e\n\u003cli\u003eCadillac Fleetwood and Commercial Chassis\u003c\/li\u003e\n\u003cli\u003eChevrolet Caprice and Impala\u003c\/li\u003e\n\u003cli\u003eOldsmobile Delta 88 and 98\u003c\/li\u003e\n\u003cli\u003ePontiac Bonneville and Catalina\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThese springs are designed to restore original suspension geometry and performance for vehicles requiring coil spring replacement due to wear or damage.\u003c\/p\u003e\u003ch2\u003eCommon Suspension Issues Addressed\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003eReduced ride height and sagging suspension\u003c\/li\u003e\n\u003cli\u003eUneven tire wear caused by worn springs\u003c\/li\u003e\n\u003cli\u003eDecreased handling stability and control\u003c\/li\u003e\n\u003cli\u003eExcessive body roll during cornering\u003c\/li\u003e\n\u003cli\u003eNoise or vibration from weakened coil springs\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eInstallation Notes and Tips\u003c\/h2\u003e\u003cp\u003eWhen installing the Moog CC621 coil spring set, ensure the vehicle is securely lifted and supported. Use appropriate spring compressors to safely remove and install the coil springs. Verify that the pigtail ends seat properly in the spring mounts to maintain suspension alignment. It is recommended to inspect related suspension components such as shocks and struts during installation for optimal performance.\u003c\/p\u003e\u003ch2\u003eQuality Assurance and Warranty\u003c\/h2\u003e\u003cp\u003eMoog coil springs are manufactured to meet or exceed OEM specifications, providing consistent performance and durability. The CC621 coil spring set undergoes rigorous quality control to ensure reliability under normal driving conditions. While specific warranty details are not provided, Moog products typically come with a limited warranty against defects in materials and workmanship.\u003c\/p\u003e","brand":"Moog","offers":[{"title":"Default Title","offer_id":52022148104373,"sku":"BCCH-CC621","price":210.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0628\/1442\/1173\/files\/MC_CC621_Ang.jpg?v=1775075305","url":"https:\/\/www.partcatalog.com\/products\/moog-cc621-coil-spring-set-rear","provider":"PartCatalog","version":"1.0","type":"link"}