Moog CC603 Coil Spring Set - Rear

Moog CC603 Coil Spring Set Overview

The Moog CC603 coil spring set is engineered for reliable suspension performance on Chevrolet and GMC trucks and SUVs. Designed specifically for models like the Chevrolet Blazer, C10 Suburban, C20 Suburban, and GMC Jimmy, this coil spring set offers consistent ride height and load support.

• Variable rate coil springs with a wire diameter of 0.81 inches (20.60 mm)
• Black finish for corrosion resistance and durability
• Front and rear spring outside diameter of 7.120 inches
• Free height of 13.06 inches (331.70 mm) and installation height of 10.75 inches (273.10 mm)
• Load capacity of 910 lbs with a spring rate of 393 lbs per inch
• Pigtail end type for secure mounting

Technical Details and Specifications

The Moog CC603 coil spring set features a variable rate spring design, which provides a progressive response to load changes, improving ride comfort and handling. Both front and rear springs share identical dimensions, including a free height of 13.06 inches and an outside diameter of 7.120 inches, ensuring balanced suspension performance. The wire diameter measures 0.81 inches (20.60 mm), contributing to the spring's strength and durability. The springs compress to an installation height of 10.75 inches, maintaining proper suspension geometry under load. The pigtail end design facilitates proper seating and alignment within the suspension assembly.

Compatible Vehicles and Applications

This coil spring set is compatible with the following vehicles:

• Chevrolet Blazer
• Chevrolet C10 Suburban
• Chevrolet C20 Suburban
• GMC Jimmy

These springs are ideal for restoring factory ride height and suspension performance on these models, especially when addressing sagging or worn springs.

Common Suspension Issues Addressed

• Restores proper ride height on Chevrolet Blazer and GMC Jimmy models
• Improves load handling for C10 and C20 Suburban trucks
• Reduces suspension sag and uneven stance
• Enhances vehicle stability under heavy loads
• Maintains suspension geometry for improved tire wear

Installation Notes and Tips

When installing the Moog CC603 coil spring set, ensure the springs are oriented with the pigtail ends properly seated in the spring perches. Verify that the installation height matches the specified 10.75 inches compressed length to maintain correct suspension alignment. It is recommended to inspect related suspension components such as shocks and bushings during installation to ensure overall system integrity.

Quality Assurance and Warranty

Moog coil springs are manufactured to meet or exceed OEM specifications, providing reliable performance and durability. While specific warranty details are not provided, Moog products typically come with a limited warranty against defects in materials and workmanship. For detailed warranty information, consult Moog's official documentation or authorized distributors.