ACDelco Professional Brake Drums are constructed with G3000 SAE qualified material for structural integrity and maximum service life. They are tested to ISO/TS 16949 quality system standards and validated for balance to provide better braking performance. Chamfer angle, vane configuration, and plate thickness all follow the OE design, making them a premium aftermarket replacement for your GM and non-GM vehicle. Also, no machining is required. ACDelco Professional Brake Drums are ready to be installed right out of the box.

• Inspected for balance; resulting in smooth brake operation and noise reduction
• Independently tested with Noise/Vibration/Harshness (NVH) and durability/wear testing; resulting in high quality and reliable products
• Follows original manufacturers' designs for dispersing heat, helping to prolong pad and rotor life while reducing noise and vibration

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
Center Bore Diameter (in):	3.98in
Center Bore Diameter (mm):	101mm
Depth:	2.4
Depth:	60.95
Discard Thickness (in):	11.67
Discard Thickness (mm):	296.5
Grade Type:	Regular
Height (in):	4
Length (in):	11.67
Material:	Cast Iron
Maximum Brake Diameter (Discard):	296.42
Mount Hole Diameter (in):	0.562in
Mount Hole Diameter (mm):	14.275mm
Nominal Drum Diameter:	0.46
Nominal Drum Diameter:	11.65
Outer Cooling Fins:	No
Outside Diameter:	0.52
Outside Diameter:	13.2
Programming Required:	No
Stud/Lug Hole Diameter:	0.542
Stud/Lug Hole Diameter:	13.75
Stud/Lug Hole Quantity:	6
Weight:	18.8
Width (in):	13.5

• 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