ACDelco
ACDelco 177-0963 | Front Disc Brake Rotor
ACDelco GM Original Equipment Disc Brake Rotors are metal discs mounted to the wheel hub where the caliper can press the brake pads against the disc surfaces to slow the vehicle, and are...
ABS Sensor Ring Included | No |
Bolt Circle Diameter (in) | 4.64 |
Bolt Circle Diameter (mm) | 118 |
Bolt Hole Quantity | 5 |
Center Bore Diameter (in) | 2.7 in |
Center Bore Diameter (mm) | 70.7 mm |
Construction | Full Cast |
Disc Finish | Machined |
Good Maintenance Practices - Section 1 - Bullet 1 | Check brake fluid level at every oil change. Replace fluid according to owner's manual recommendations. |
Good Maintenance Practices - Section 1 - Bullet 2 | Calipers and wheel cylinders should be checked every brake inspection and serviced or replaced as required. |
Good Maintenance Practices - Section 1 - Bullet 3 | Inspect the brake lines for rust, punctures, or visible leaks (You may be able to do this, but consult a qualified technician if necessary). |
Good Maintenance Practices - Section 1 - Bullet 4 | Check the thickness of your brake pads. |
Good Maintenance Practices - Section 1 - Header | The following inspections and maintenance procedures can help prevent potential brake problems. |
Good Maintenance Practices - Section 2 - Bullet 1 | Inspection of the brake hoses for brittleness or cracking. |
Good Maintenance Practices - Section 2 - Bullet 2 | Inspection of brake lining and pads for wear or contamination by brake fluid or grease. |
Good Maintenance Practices - Section 2 - Bullet 3 | Inspection of wheel bearings and grease seals. |
Good Maintenance Practices - Section 2 - Bullet 4 | Parking brake adjustments (as needed). |
Good Maintenance Practices - Section 2 - Header | The following should be conducted by a qualified technician: |
Grade Type | Regular |
Hat Finish | Painted |
Height (in) | 1.9 |
Height (mm) | 49 |
Lug Quantity | 5 |
Material | Cast Iron |
Overall Rotor Diameter (mm) | 277.8 mm |
Programming Required | No |
Rust Resistant Coating | Yes |
Signs of Wear & Troubleshooting - Section 1 - Bullet 1 | Brake pedal pulsation (not to be confused with normal ABS operation). |
Signs of Wear & Troubleshooting - Section 1 - Bullet 2 | Squealing or grinding noises. |
Signs of Wear & Troubleshooting - Section 1 - Bullet 3 | Low brake pedal height. |
Signs of Wear & Troubleshooting - Section 1 - Bullet 4 | Vehicle pulls to the left or right when brakes are applied. |
Signs of Wear & Troubleshooting - Section 1 - Bullet 5 | Visible ridges or deep grooves on the rotor surface. |
Signs of Wear & Troubleshooting - Section 1 - Header | Brake rotor signs of wear include: |
Slotted | No |
Solid Or Vented Type Rotor | Vented |
Surface Type | Smooth |