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:	5
Brake Surface Finish:	Turned
Center Bore Diameter (in):	3.44in
Center Bore Diameter (mm):	87.5mm
Depth:	2.83
Depth:	71.9
Discard Thickness (in):	11.12
Discard Thickness (mm):	282.4
Grade Type:	Regular
Height (in):	4.75
Length (in):	11.12
Material:	Cast Iron
Maximum Brake Diameter (Discard):	282.45
Mount Hole Diameter (in):	0.6in
Mount Hole Diameter (mm):	15.24mm
Nominal Drum Diameter:	0.438
Nominal Drum Diameter:	11.1
Outer Cooling Fins:	No
Outside Diameter:	0.502
Outside Diameter:	12.75
Programming Required:	No
Stud/Lug Hole Diameter:	0.592
Stud/Lug Hole Diameter:	15.05
Stud/Lug Hole Quantity:	5
Weight:	17.8
Width (in):	13.25

• 1987-1996 Ford Bronco | Position: Rear
• 1987-1999 Ford E-150 Econoline | Position: Rear
• 1987-1999 Ford E-150 Econoline Club Wagon | Position: Rear
• 1987-1996 Ford F-150 | Position: Rear