ACDelco's Professional 18B599 Rear Brake Drum is a pinnacle of reliability and performance for both GM and non-GM vehicles such as the Chevrolet Silverado 1500 & GMC Sierra 1500. Crafted with G3000 qualified material, these brake drums deliver outstanding structural integrity and a prolonged service life, ensuring your vehicle stops smoothly and quietly. No machining is needed, making this drum a hassle-free and ready-to-install aftermarket solution. Tested to ISO/TS 16949 standards, this rear brake drum is validated for balance, improving vehicular braking performance and maintaining optimal function across various driving conditions. Typical symptoms indicating the need for a replacement brake drum include unusual grinding noise, reduced braking efficiency, or a vibrating pedal. Investing in this ACDelco brake drum not only restores braking function but also protects other braking components from premature wear. Pair your purchase with premium brake shoes to enhance performance fully.

• Manufactured using G3000 SAE qualified material for durability
• Tested to ISO/TS 16949 standards for quality assurance
• OE design ensures compatibility and optimal performance
• No additional machining required, ready-to-install
• Ensures quiet, smooth braking operation with minimal noise
• Suitable for Chevrolet Silverado & GMC Sierra

ABS Tone Ring Included:	No
Bolt Circle Diameter (in):	5.5
Bolt Circle Diameter (mm):	139.7
Bolt Hole Quantity:	6
Brake Surface Finish:	Turned
Material:	Cast Iron
Weight:	24.3 lbs
Height (in):	4.5
Nominal Drum Diameter (in):	11.6
Center Bore Diameter (mm):	78.6

• 2009-2013 Chevrolet Silverado 1500 | Position: Rear
• 2009-2013 GMC Sierra 1500 | Position: Rear