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Dynamic Friction 631-47006R Disc Brake Rotor - Front Right
| Brand | Dynamic Friction 631-47006R |
|---|---|
| Position | Front Right |
| Discard Thickness | 24.51 |
| Nominal Thickness | 26.29 |
| Bolt Hole Diameter | 1/2-20 |
| Disc Finish | Plain |
| Hat Finish | Zinc silver |
| Rust Resistant Coating | Yes |
| Bolt Hole Quantity | 5 |
| Overall Height | 118.1 |
| Outside Diameter | 302 |
| Height | 118.1 |
| Surface Type | Slotted x drilled |
| Solid Or Vented Type Rotor | Vented |
| Center Hole Diameter | 77.7 |
| Stud/Lug Hole Quantity | 5 |
| Directional or Non-Directional Brake Surface | Directional |
| Bolt Circle Diameter | 127 |
| Stud/Lug Hole Circle Diameter | 127 |
| Product line | DFC Brake Rotor - Drilled and Slotted - Silver |
| Fits | Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac · 27 vehicles |
Drilled and slotted. Directional surface helps manage heat and maintain braking consistency.
Corrosion protection. Zinc silver hat finish with rust-resistant coating for exposed surfaces.
Vented construction. Built with a vented rotor design for improved airflow during braking.
Overview
This Dynamic Friction disc brake rotor is a fitment-specific replacement for classic full-size GM applications that use a front right rotor configuration. The DFC Brake Rotor - Drilled and Slotted - Silver, part number 631-47006R, combines a vented design with a directional slotted-and-drilled surface for consistent braking performance.
Compatible With 1977-1978 Pontiac Grand Safari and 1977 Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models listed below, this rotor is built around the specified bolt pattern, center bore, and height dimensions for accurate fitment. The 631-47006R part number is also useful when verifying the correct replacement before ordering.
Key Features
- Vented rotor construction for improved heat management.
- Slotted and drilled surface type with a directional braking face.
- Zinc silver hat finish with rust-resistant coating.
- 5-lug pattern with 127 mm bolt circle and 77.7 mm center hole.
- Plain disc finish with OE-style dimensional specifications.
Detailed Description
The DFC Brake Rotor - Drilled and Slotted - Silver, part number 631-47006R, is engineered for vehicles that require a front right disc brake rotor with the listed dimensions and mounting pattern. Its vented construction, directional surface, and drilled-and-slotted face are intended to support stable braking characteristics while the zinc silver hat finish and rust-resistant coating help protect exposed surfaces from corrosion. This rotor is a practical choice for restoring braking service on applications such as Pontiac Grand Safari, Buick Riviera, and Chevrolet Caprice.
For buyers searching by fitment, this rotor matches the specified classic GM applications rather than a universal size. The 631-47006R designation should be matched against the vehicle listing and brake configuration notes to confirm the correct application before installation.
What It Helps Address
- Brake rotor wear that affects stopping consistency.
- Surface corrosion on the rotor hat and exposed areas.
- Heat buildup during repeated braking.
- Brake pulsation caused by an out-of-spec rotor.
- Fitment issues when replacing a front right rotor on listed GM vehicles.
Installation Notes and Tips
Verify the vehicle’s brake configuration, wheel bolt pattern, center bore, and rotor height before installation. This rotor is listed for front right applications only, and several fitments include drum-size or brake-package notes that should be checked carefully. Match the part number 631-47006R to the vehicle listing to confirm the correct application for Buick, Cadillac, Chevrolet, Oldsmobile, or Pontiac models.
Quality Assurance
Dynamic Friction supplies brake components for replacement use with published dimensional and finish specifications. The zinc silver hat finish and rust-resistant coating add surface protection, while the vented, directional drilled-and-slotted design supports consistent brake service on the listed applications.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1978 | Pontiac | Grand Safari | Front Right | Rear disc brake rotor designed for 11 inch rear drums.; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1977 | Buick | Electra | Front Right | 11 inch, 4 inch Tall Drums; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1977 | Buick | Electra | Front Right | 11 inch, 3-1/4 inch Tall Drums; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1977 | Buick | Estate Wagon | Front Right | 11 inch, 4 inch Tall Drums; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1977 | Buick | Estate Wagon | Front Right | 11 inch, 3-1/4 inch Tall Drums; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1977 | Buick | LeSabre | Front Right | 11 inch, 4 inch Tall Drums; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1977 | Buick | LeSabre | Front Right | 11 inch, 3-1/4 inch Tall Drums; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1977 | Buick | Riviera | Front Right | DFC Brake Rotor - Drilled and Slotted - Silver |
| 1977 | Buick | Riviera | Front Right | 3-1/4 inch Tall Drums; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1977 | Buick | Riviera | Front Right | 4 inch Tall Drums; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1977 | Cadillac | Commercial Chassis | Front Right | 11 inch; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1977 | Cadillac | Commercial Chassis | Front Right | DFC Brake Rotor - Drilled and Slotted - Silver |
| 1977 | Cadillac | DeVille | Front Right | DFC Brake Rotor - Drilled and Slotted - Silver |
| 1977 | Cadillac | Fleetwood | Front Right | DFC Brake Rotor - Drilled and Slotted - Silver |
| 1977 | Cadillac | Fleetwood | Front Right | 11 inch; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1977 | Cadillac | Seville | Front Right | DFC Brake Rotor - Drilled and Slotted - Silver |
| 1977 | Chevrolet | Caprice | Front Right | Rear disc brake rotor designed for 11 inch rear drums.; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1977 | Chevrolet | Impala | Front Right | Rear disc brake rotor designed for 11 inch rear drums.; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1977 | Oldsmobile | 98 | Front Right | DFC Brake Rotor - Drilled and Slotted - Silver |
| 1977 | Oldsmobile | Custom Cruiser | Front Right | 3-1/4 inch Tall Drums; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1977 | Oldsmobile | Custom Cruiser | Front Right | 4 inch Tall Drums; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1977 | Oldsmobile | Delta 88 | Front Right | Heavy Duty; 3-1/4 inch Tall Drums; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1977 | Oldsmobile | Delta 88 | Front Right | Heavy Duty; 4 inch Tall Drums; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1977 | Pontiac | Bonneville | Front Right | 11 inch Rear Drums; 4 inch Tall Drums; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1977 | Pontiac | Bonneville | Front Right | 11 inch Rear Drums; 3-1/4 inch Tall Drums; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1977 | Pontiac | Catalina | Front Right | Rear disc brake rotor designed for 11 inch rear drums.; DFC Brake Rotor - Drilled and Slotted - Silver |
| 1977 | Pontiac | Grand Safari | Front Right | Rear disc brake rotor designed for 11 inch rear drums.; DFC Brake Rotor - Drilled and Slotted - Silver |
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