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
Bolt Circle Diameter (mm):	127
Bolt Hole Quantity:	5
Brake Surface Finish:	Turned
Center Bore Diameter (in):	3.09in
Center Bore Diameter (mm):	78.6mm
Depth:	2.61
Depth:	66.3
Discard Thickness (in):	9.59
Discard Thickness (mm):	243.6
Grade Type:	Regular
Height (in):	4.88
Length (in):	9.59
Material:	Cast Iron
Maximum Brake Diameter (Discard):	243.59
Mount Hole Diameter (in):	0.536in
Mount Hole Diameter (mm):	13.614mm
Nominal Drum Diameter:	0.378
Nominal Drum Diameter:	9.6
Outer Cooling Fins:	Yes
Outside Diameter:	0.471
Outside Diameter:	11.95
Programming Required:	No
Stud/Lug Hole Diameter:	0.528
Stud/Lug Hole Diameter:	13.4
Stud/Lug Hole Quantity:	5
Weight:	16.5
Width (in):	12.38

• 1985-2002 Chevrolet Astro | Position: Rear
• 1985-2002 GMC Safari | Position: Rear