Centric 122.66045 Brake Drum - Rear

Overview of Centric Premium Brake Drums 122.66045

The Centric Premium Brake Drum 122.66045 is engineered for reliable braking performance on Chevrolet and GMC trucks. Designed specifically for the Sierra 1500 and Silverado 1500 models, this brake drum meets precise fitment and durability requirements.

• Compatible with Chevrolet Sierra 1500 and GMC Silverado 1500
• Part number 122.66045 for accurate identification
• Nominal drum diameter of 11.614 inches (295 mm)
• Outside diameter approximately 13.209 inches (335.5 mm)
• 6 bolt holes with a 5.5 inch (139.7 mm) bolt circle diameter
• Floating mounting type for secure installation
• Friction surface width of 3.0 inches (76.2 mm)
• Weight of 24.6 lbs (11.182 kgs) for balanced performance

Centric Premium Brake Drums Product Line

The Centric Premium Brake Drums line focuses on delivering consistent braking performance with precise manufacturing tolerances. This product line is designed to meet or exceed OEM specifications, providing a reliable replacement option for brake drums on light trucks such as the Chevrolet Sierra 1500 and GMC Silverado 1500. The 122.66045 brake drum benefits from this quality control, ensuring proper fit and function within the braking system.

Detailed Product Description

This brake drum features a nominal diameter of 11.614 inches (295 mm) and an outside diameter of approximately 13.209 inches (335.5 mm), matching OEM dimensions for proper fitment. It includes six bolt holes arranged on a 5.5 inch (139.7 mm) bolt circle diameter, with mounting holes sized at 0.65 inches (16.5 mm). The friction surface width is 3.0 inches (76.2 mm), providing adequate contact area for brake shoes. The floating mounting type allows for secure attachment while accommodating slight movement during operation. Weighing 24.6 lbs (11.182 kgs), this brake drum balances durability and weight considerations for the braking system.

Common Applications and Issues Addressed

• Replacement for worn or scored brake drums on Chevrolet Sierra 1500 and GMC Silverado 1500
• Resolves brake pulsation caused by uneven drum wear
• Addresses noise issues related to damaged or warped drums
• Improves braking consistency and pedal feel
• Restores proper brake shoe contact and stopping power

Installation Notes and Tips

• Verify compatibility with vehicle make, model, and year before installation
• Inspect brake shoes and hardware for wear and replace as necessary
• Clean mounting surfaces to ensure proper seating of the brake drum
• Torque lug nuts to manufacturer specifications to avoid warping
• Check brake system adjustment after installation for optimal performance

Quality Assurance and Warranty

Centric Premium Brake Drums are manufactured to meet or exceed OEM standards, ensuring reliable performance and fitment. The 122.66045 brake drum undergoes rigorous quality control processes to maintain dimensional accuracy and material integrity. While specific warranty details may vary, Centric typically offers coverage against defects in materials and workmanship, providing confidence in the product's durability and function.