Centric 123.66034 Brake Drum - Rear

Overview of Centric C-TEK Standard Brake Drum 123.66034

The Centric C-TEK Standard Brake Drum 123.66034 is engineered for reliable braking performance on select GM trucks and SUVs. Designed to meet OEM specifications, this brake drum is compatible with Cadillac Escalade, Chevrolet K1500 Suburban, Suburban 1500, Tahoe, and GMC Yukon models.

• Nominal drum diameter: 11.157 inches (283.4 mm)
• Maximum brake diameter (discard): 11.240 inches (285.5 mm)
• Outside diameter: 13.620 inches (345.948 mm)
• Friction surface width: 3.270 inches (83.058 mm)
• Bolt hole quantity: 6 with 0.580 inch (14.732 mm) diameter
• Bolt circle diameter: 5.500 inches (139.7 mm)
• Height: 3.830 inches (97.282 mm)
• Hub hole/register diameter: 3.090 inches (78.486 mm)
• Mounting type: Floating
• Weight: 25.5 lbs (11.591 kgs)
• No outer cooling fins

Product Line Details: C-TEK Standard Brake Drums

The C-TEK Standard Brake Drums line by Centric offers precision-engineered brake drums designed to meet or exceed OEM standards. This product line focuses on delivering consistent fitment and reliable braking performance for a range of GM vehicles. The 123.66034 brake drum is part of this line, ensuring compatibility and durability for your Cadillac Escalade, Chevrolet Suburban, Tahoe, and GMC Yukon.

Technical Description and Specifications

This brake drum features a nominal diameter of 11.157 inches and a maximum discard diameter of 11.240 inches, providing a precise fit for the specified GM models. The outside diameter measures 13.620 inches, while the friction surface width is 3.270 inches, offering adequate surface area for brake shoe contact. The drum includes six bolt holes with a 5.5-inch bolt circle diameter, designed for floating mounting type installation. Weighing 25.5 pounds, this brake drum balances durability with manageable weight for ease of handling during installation.

Common Applications and Problem Solving

• Replacement for worn or scored brake drums on Cadillac Escalade and Chevrolet Suburban models
• Restores proper braking performance on GMC Yukon and Tahoe vehicles
• Addresses brake pulsation caused by uneven drum wear
• Eliminates noise and vibration from damaged or warped drums
• Ensures safe and consistent braking by maintaining correct drum dimensions

Installation Notes and Tips

Ensure the brake drum is compatible with your vehicle’s make and model before installation. Verify that the mounting holes align correctly with the hub and that the drum diameter is within discard limits. Clean the hub surface to remove rust or debris for proper seating. Use appropriate torque specifications for the mounting bolts to avoid warping. It is recommended to inspect brake shoes and hardware during installation for optimal performance.

Quality Assurance and Warranty

Centric C-TEK Standard Brake Drums are manufactured to meet OEM quality standards, ensuring reliable performance and fitment. The 123.66034 brake drum undergoes rigorous quality control to maintain dimensional accuracy and material integrity. Warranty coverage details should be confirmed with the product documentation or supplier.