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Raybestos 2637R Brake Drum - Rear
| Brand | Raybestos 2637R |
|---|---|
| Position | Rear |
| Depth | 2.450 |
| Depth | 62.250 |
| Nominal Drum Diameter | 0.397 |
| Nominal Drum Diameter | 10.100 |
| Outer Cooling Fins | No |
| Outside Diameter | 0.459 |
| Outside Diameter | 11.650 |
| Stud/Lug Hole Diameter | 0.613 |
| Stud/Lug Hole Diameter | 15.550 |
| Stud/Lug Hole Quantity | 5 |
| Product line | R-Line |
| Fits | Ford and Mercury · 31 vehicles |
Brake drum replacement. A straightforward replacement for worn drum brake components.
R-Line engineering. Built for dependable braking performance in everyday service.
Cross-references Anchor 2637, Baldwin 20054 and Centric Parts 123.61005 for the same application. See all 37.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Raybestos R-Line Brake Drum 2637R
The Raybestos R-Line 2637R brake drum is a rear brake drum for select Ford and Mercury applications, including classic Mustang, Cougar, and Montego models. It is built to match the listed drum dimensions and lug pattern for direct replacement service on compatible rear brake systems.
Key Features
- Brake drum for rear axle applications
- Outside diameter: 11.650 in. / 0.459 in.
- Depth: 2.450 in. / 62.250 in.
- Nominal drum diameter: 10.100 in. / 0.397 in.
- 5 stud/lug holes with 0.613 in. / 15.550 in. hole diameter
- No outer cooling fins
- Raybestos R-Line part number 2637R
Product Details
Raybestos R-Line focuses on replacement brake components for everyday repair work, and the 2637R brake drum follows that approach with application-specific sizing for older Ford and Mercury rear drum brake systems. This part is listed for 1973 Ford Mustang rear, 1967-1973 Mercury Cougar rear with composite drum and non-flared drum, 1964-1972 Ford Mustang rear with 10 in. x 2 in. brakes, and 1968-1971 Mercury Montego rear with composite drum and 10 in. x 2 in. brakes. The 2637R brake drum is also cross-referenced to Anchor 2637.
Common Issues This Part Addresses
- Rear brake drum wear that affects braking consistency
- Out-of-spec drum dimensions that can cause poor shoe contact
- Brake pulsation or uneven rear braking from a worn drum surface
- Fitment problems on vehicles requiring a 10 in. x 2 in. rear drum setup
- Replacement needs for classic Ford Mustang, Mercury Cougar, and Mercury Montego rear brakes
Installation Notes and Tips
Verify the drum diameter, depth, lug hole count, and brake shoe size before installation. Confirm rear axle application and match the vehicle’s brake configuration, especially on 1964-1973 Ford Mustang, 1967-1973 Mercury Cougar, and 1968-1971 Mercury Montego models. Inspect shoes, wheel cylinders, and related brake hardware for wear before installing the new drum.
Quality Assurance
Raybestos is a long-standing brake parts brand, and the R-Line is positioned for replacement service across a wide range of repair applications. The 2637R is built to the listed dimensional specifications for the stated vehicle fitments.
| Year | Make | Model | Submodel | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 1973 | Ford | Mustang | — | 5.0L | V8 | Rear | R-Line |
| 1973 | Ford | Mustang | — | 4.1L | L6 | Rear | R-Line |
| 1973 | Ford | Mustang | — | — | — | Rear | R-Line |
| 1973 | Mercury | Cougar | — | — | — | Rear | Composite Drum; with Non-Flared Drum; R-Line |
| 1972 | Ford | Mustang | — | — | — | Rear | with 10 IN x 2 IN Brakes; R-Line |
| 1972 | Mercury | Cougar | — | — | — | Rear | Composite Drum; with Non-Flared Drum; R-Line |
| 1971 | Ford | Mustang | — | — | — | Rear | with 10 IN x 2 IN Brakes; R-Line |
| 1971 | Mercury | Cougar | — | — | — | Rear | Composite Drum; with Non-Flared Drum; R-Line |
| 1971 | Mercury | Montego | Base | — | — | Rear | Composite Drum; with 10 IN x 2 IN Brakes; R-Line |
| 1971 | Mercury | Montego | Villager | — | — | Rear | Composite Drum; with 10 IN x 2 IN Brakes; R-Line |
| 1971 | Mercury | Montego | MX | — | — | Rear | Composite Drum; with 10 IN x 2 IN Brakes; R-Line |
| 1971 | Mercury | Montego | MX Brougham | — | — | Rear | Composite Drum; with 10 IN x 2 IN Brakes; R-Line |
| 1970 | Ford | Mustang | — | — | — | Rear | with 10 IN x 2 IN Brakes; R-Line |
| 1970 | Mercury | Cougar | — | — | — | Rear | Composite Drum; with Non-Flared Drum; R-Line |
| 1970 | Mercury | Montego | Base | — | — | Rear | Composite Drum; with 10 IN x 2 IN Brakes; R-Line |
| 1970 | Mercury | Montego | Villager | — | — | Rear | Composite Drum; with 10 IN x 2 IN Brakes; R-Line |
| 1970 | Mercury | Montego | MX | — | — | Rear | Composite Drum; with 10 IN x 2 IN Brakes; R-Line |
| 1970 | Mercury | Montego | MX Brougham | — | — | Rear | Composite Drum; with 10 IN x 2 IN Brakes; R-Line |
| 1969 | Ford | Mustang | — | — | — | Rear | with 10 IN x 2 IN Brakes; R-Line |
| 1969 | Mercury | Cougar | — | — | — | Rear | Composite Drum; with Non-Flared Drum; R-Line |
| 1969 | Mercury | Montego | Base | — | — | Rear | Composite Drum; with 10 IN x 2 IN Brakes; R-Line |
| 1969 | Mercury | Montego | MX | — | — | Rear | Composite Drum; with 10 IN x 2 IN Brakes; R-Line |
| 1968 | Ford | Mustang | — | — | — | Rear | with 10 IN x 2 IN Brakes; R-Line |
| 1968 | Mercury | Cougar | — | — | — | Rear | Composite Drum; with Non-Flared Drum; R-Line |
| 1968 | Mercury | Montego | Base | — | — | Rear | Composite Drum; with 10 IN x 2 IN Brakes; R-Line |
| 1968 | Mercury | Montego | MX | — | — | Rear | Composite Drum; with 10 IN x 2 IN Brakes; R-Line |
| 1967 | Ford | Mustang | — | — | — | Rear | with 10 IN x 2 IN Brakes; R-Line |
| 1967 | Mercury | Cougar | — | — | — | Rear | Composite Drum; with Non-Flared Drum; R-Line |
| 1966 | Ford | Mustang | — | — | — | Rear | with 10 IN x 2 IN Brakes; R-Line |
| 1965 | Ford | Mustang | — | — | — | Rear | with 10 IN x 2 IN Brakes; R-Line |
| 1964 | Ford | Mustang | — | — | — | Rear | with 10 IN x 2 IN Brakes; R-Line |
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