Centric 122.66030 Brake Drum - Rear

Overview of Centric Premium Brake Drum 122.66030

The Centric Premium Brake Drum 122.66030 is engineered for reliable braking performance on Chevrolet and GMC trucks and vans. Designed to meet OEM specifications, this brake drum supports vehicles such as the Chevrolet C1500 Suburban and GMC Savana 3500, ensuring consistent stopping power and durability.

• Compatible with Chevrolet and GMC models including C1500 Suburban, C2500 Suburban, C3500, Express 2500/3500, G30, K2500 Suburban, K3500, P30, P3500, Savana 2500/3500, and Suburban 2500
• Nominal drum diameter of 13.000 inches (330.20 mm) with a maximum discard diameter of 13.090 inches (332.50 mm)
• Features 8 bolt holes with a bolt circle diameter of 6.5 inches (165.1 mm)
• Outside diameter measures 16.830 inches (427.48 mm) with outer cooling fins for heat dissipation
• Friction surface width of 3.95 inches (100.33 mm) and a height of 6.31 inches (160.27 mm)
• Floating mounting type with mounting hole diameter of 0.61 inches (15.49 mm)
• Weight approximately 63 lbs (28.64 kgs)

Product Line Details: Centric Premium Brake Drums

The Centric Premium Brake Drums line focuses on delivering precision-engineered brake components that meet or exceed OEM standards. This product line emphasizes durability and consistent performance, featuring design elements such as outer cooling fins to improve heat dissipation and reduce brake fade. The 122.66030 brake drum is part of this line, providing a reliable replacement option for heavy-duty Chevrolet and GMC vehicles requiring robust braking solutions.

Technical Description and Specifications

This brake drum is designed with a nominal diameter of 13.000 inches and a maximum discard diameter of 13.090 inches, ensuring it maintains proper fit and function throughout its service life. The 8-bolt hole configuration with a 6.5-inch bolt circle diameter matches factory specifications for secure mounting. Outer cooling fins enhance thermal management during braking, which is critical for heavy-duty applications such as the GMC Savana 3500 and Chevrolet Suburban 2500. The friction surface width of nearly 4 inches provides ample contact area for brake shoes, contributing to effective stopping power. The floating mounting type allows for slight movement to accommodate thermal expansion and reduce stress on components.

Compatible Vehicles and Applications

• Chevrolet C1500 Suburban and C2500 Suburban
• Chevrolet C3500 and Suburban 2500
• Chevrolet Express 2500 and Express 3500
• GMC G30, K2500 Suburban, and K3500
• GMC P30, P3500, Savana 2500, and Savana 3500

Common Issues Addressed by This Brake Drum

• Brake drum wear leading to reduced braking efficiency
• Overheating and brake fade during heavy-duty use
• Warped or damaged drums causing vibration or noise
• Corrosion or surface damage affecting brake shoe contact
• Incorrect fitment or bolt pattern mismatch with OEM parts

Installation Notes and Tips

• Verify vehicle compatibility with Chevrolet and GMC models listed before installation
• Inspect brake shoes and hardware for wear and replace as necessary
• Ensure mounting surfaces are clean and free of debris for proper fit
• Torque bolts to manufacturer specifications to avoid warping
• Check drum diameter against maximum discard limits to confirm usability

Quality Assurance and Warranty

Centric Premium Brake Drums are manufactured to meet strict quality standards, ensuring durability and performance consistent with OEM requirements. The 122.66030 brake drum undergoes rigorous testing for dimensional accuracy and material integrity. While specific warranty details are not provided here, Centric products typically include coverage against manufacturing defects. Consult product documentation or supplier for exact warranty terms.