ACDelco GM Original Equipment Brake Drums are cylinder shaped bowls where the wheel cylinder presses the brake shoes outward against the inside of the drum. Drums are typically found on older vehicles and on the rear axles of trucks and some cars. These original equipment brake drums are manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

• Inspected for balance, resulting in smooth brake operation and noise reduction
• Have a rust-preventative coating to help protect against corrosion
• GM-recommended replacement part for your GM vehicle's original factory component
• Offering the quality, reliability, and durability of GM OE
• Manufactured to GM OE specification for fit, form, and function

Bolt Hole Quantity:	6
Drum Center Bore Diameter (in):	3.976378
Drum Center Bore Diameter (mm):	101
Height (in):	3.6
Inside Diameter:	11.61654
Inside Diameter:	295.06
Length (in):	14.9
Material:	Cast Iron
Maximum Brake Diameter (Discard):	11.673
Maximum Brake Diameter (Discard):	296.5
Mount Hole Diameter (in):	0.5314961 in
Mount Hole Diameter (mm):	13.5 mm
Outside Diameter:	12.19685
Outside Diameter:	309.8
Programming Required:	No
Weight:	20
Width (in):	14.6

• 2004-2012 Chevrolet Colorado | Position: Rear
• 2004-2012 GMC Canyon | Position: Rear
• 2006 Isuzu i-280 | Position: Rear
• 2006 Isuzu i-350 | Position: Rear
• 2007-2008 Isuzu i-290 | Position: Rear
• 2007-2008 Isuzu i-370 | Position: Rear