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Raybestos 2681R Brake Drum - Rear
Raybestos R-Line Brake Drum 2681R Overview
The Raybestos R-Line 2681R brake drum is a rear brake drum for select Ford and Mercury applications, including Mustang, Cougar, Thunderbird, LTD, Capri, Marquis, Fairmont, Zephyr, Pinto, and Bobcat models. Built around a 9.050 in nominal drum diameter with a 10.650 in outside diameter and 2.110 in depth, it is sized for vehicles using a 9 in x 1-3/4 in rear drum brake setup.
The R-Line product line focuses on direct-fit brake service parts for everyday repair work. This brake drum includes outer cooling fins and a 4-lug pattern with 14.000 mm stud/lug hole diameter, supporting rear drum brake service on classic Ford and Mercury platforms.
Key Features
- Part number: 2681R
- Rear brake drum for select Ford and Mercury vehicles
- Nominal drum diameter: 9.050 in
- Outside diameter: 10.650 in
- Depth: 2.110 in
- Outer cooling fins: Yes
- 4 stud/lug holes with 14.000 mm diameter
- R-Line brake service part from Raybestos
Detailed Product Description
Raybestos 2681R is a rear brake drum engineered for vehicles that use a 9-inch diameter drum brake configuration, including applications such as 1989-1992 Ford Mustang rear, 1985-1990 Mercury Cougar rear, and 1985-1988 Ford Thunderbird rear. It also covers additional rear applications across Ford LTD, Mercury Capri, Mercury Marquis, Ford Fairmont, Mercury Zephyr, Ford Pinto, and Mercury Bobcat platforms. The drum’s 9.050 in nominal diameter and 2.110 in depth help match the original brake geometry for service replacement work.
This part cross-references DuraGo BD8890 and Anchor 8890 for the same application. For shoppers searching rear brake drum for 1989-1992 Ford Mustang, rear brake drum for 1985-1990 Mercury Cougar, or Raybestos 2681R brake drum replacement, this part aligns with those fitment needs.
What This Brake Drum Helps Address
- Rear brake pulsation caused by worn or out-of-round drum surfaces
- Reduced braking consistency from drum wear or heat checking
- Noise from damaged or uneven rear drum braking surfaces
- Service replacement needs on 9-inch rear drum brake systems
- Fitment replacement for classic Ford Mustang and Mercury Cougar rear brake service
Installation Notes and Tips
- Confirm rear drum brake configuration before ordering; this part is listed for 9 in diameter brake drum applications.
- Verify stud/lug hole count and diameter against the vehicle hub before installation.
- Replace brake drums in pairs when servicing both sides of the rear axle.
- Inspect brake shoes, wheel cylinders, and hardware for wear before reassembly.
- Measure the existing drum and compare it to the listed 10.650 in outside diameter and 2.110 in depth.
Quality Assurance
Raybestos R-Line brake parts are built for direct replacement service across a wide range of passenger vehicle applications. The 2681R is listed for 71 total vehicle applications spanning 1974-1992 model years, including rear brake service on Ford Mustang and Mercury Cougar platforms.
- Fits 1989-1992 Ford Mustang, rear
- Fits 1985-1990 Mercury Cougar, rear
- Fits 1984-1988 Ford Mustang, rear
- Fits 1985-1988 Ford Thunderbird, rear
- Fits 1983-1986 Ford LTD, rear
- Fits 1979-1986 Mercury Capri, rear
- Fits 1983-1986 Mercury Marquis, rear
- Fits 1978-1983 Ford Fairmont, rear
- Fits 1979-1983 Ford Mustang, rear
- Fits 1978-1983 Mercury Zephyr, rear
- Fits 1980-1982 Ford Thunderbird, rear
- Fits 1980-1982 Mercury Cougar, rear
- Fits 1974-1980 Ford Pinto, rear
- Fits 1975-1980 Mercury Bobcat, rear
| Brand | Raybestos |
|---|---|
| Part Number | 2681R |
| Position | R-Line, Rear |
| Outside Diameter | 0.418 |
| Outside Diameter | 10.650 |
| Depth | 2.110 |
| Depth | 53.600 |
| Outer Cooling Fins | Yes |
| Nominal Drum Diameter | 0.357 |
| Nominal Drum Diameter | 9.050 |
| Stud/Lug Hole Quantity | 4 |
| Stud/Lug Hole Diameter | 0.551 |
| Stud/Lug Hole Diameter | 14.000 |
This part fits 77 vehicles. Search below:
| Year | Make | Model | Submodel | Transmission | Position | Notes |
|---|---|---|---|---|---|---|
| 1992 | Ford | Mustang | Rear | R-Line | ||
| 1991 | Ford | Mustang | Manual | Rear | R-Line | |
| 1990 | Ford | Mustang | Manual | Rear | R-Line | |
| 1990 | Mercury | Cougar | Rear | with 9in Diameter Brake Drum; with Full Cast Drum; R-Line | ||
| 1989 | Ford | Mustang | Manual | Rear | R-Line | |
| 1989 | Mercury | Cougar | Rear | with 9in Diameter Brake Drum; with Full Cast Drum; R-Line | ||
| 1988 | Ford | Mustang | Rear | with 9 IN x 1-3/4 IN Brakes; R-Line | ||
| 1988 | Ford | Thunderbird | Rear | with 9in Diameter Brake Drum; with Cast Iron Drum; R-Line | ||
| 1988 | Mercury | Cougar | Rear | with 9in Diameter Brake Drum; with Full Cast Drum; R-Line | ||
| 1987 | Ford | Mustang | Rear | with 9 IN x 1-3/4 IN Brakes; R-Line | ||
| 1987 | Ford | Thunderbird | Rear | with 9in Diameter Brake Drum; with Cast Iron Drum; R-Line | ||
| 1987 | Mercury | Cougar | Rear | with 9in Diameter Brake Drum; with Full Cast Drum; R-Line | ||
| 1986 | Ford | LTD | Base | Rear | with 9 IN x 1-3/4 IN Brakes; R-Line | |
| 1986 | Ford | LTD | Brougham | Rear | with 9 IN x 1-3/4 IN Brakes; R-Line | |
| 1986 | Ford | Mustang | Rear | with 9 IN x 1-3/4 IN Brakes; R-Line | ||
| 1986 | Ford | Thunderbird | Rear | with 9in Diameter Brake Drum; with Cast Iron Drum; R-Line | ||
| 1986 | Mercury | Capri | Rear | with 9in Diameter Brake Drum; Replace in Pairs; R-Line | ||
| 1986 | Mercury | Cougar | Rear | with 9in Diameter Brake Drum; with Full Cast Drum; R-Line | ||
| 1986 | Mercury | Marquis | Rear | Fits drum brake shoe with a 9in diameter brake drum.; R-Line | ||
| 1985 | Ford | LTD | Base | Rear | with 9 IN x 1-3/4 IN Brakes; R-Line | |
| 1985 | Ford | LTD | Brougham | Rear | with 9 IN x 1-3/4 IN Brakes; R-Line | |
| 1985 | Ford | LTD | LX Brougham | Rear | with 9 IN x 1-3/4 IN Brakes; R-Line | |
| 1985 | Ford | Mustang | Rear | with 9 IN x 1-3/4 IN Brakes; R-Line | ||
| 1985 | Ford | Thunderbird | Rear | with 9in Diameter Brake Drum; with Cast Iron Drum; R-Line | ||
| 1985 | Mercury | Capri | Rear | with 9in Diameter Brake Drum; Replace in Pairs; R-Line | ||
| 1985 | Mercury | Cougar | Rear | with 9in Diameter Brake Drum; with Full Cast Drum; R-Line | ||
| 1985 | Mercury | Marquis | Rear | Fits drum brake shoe with a 9in diameter brake drum.; R-Line | ||
| 1984 | Ford | LTD | Base | Rear | with 9 IN x 1-3/4 IN Brakes; R-Line | |
| 1984 | Ford | LTD | Brougham | Rear | with 9 IN x 1-3/4 IN Brakes; R-Line | |
| 1984 | Ford | Mustang | GT | Rear | with 9 IN x 1-3/4 IN Brakes; R-Line | |
| 1984 | Ford | Mustang | L | Rear | with 9 IN x 1-3/4 IN Brakes; R-Line | |
| 1984 | Ford | Mustang | LX | Rear | with 9 IN x 1-3/4 IN Brakes; R-Line | |
| 1984 | Mercury | Capri | Rear | with 9in Diameter Brake Drum; Replace in Pairs; R-Line | ||
| 1984 | Mercury | Marquis | Rear | Fits drum brake shoe with a 9in diameter brake drum.; R-Line | ||
| 1983 | Ford | Fairmont | Rear | with 9in Diameter Brake Drum; Replace in Pairs; R-Line | ||
| 1983 | Ford | LTD | Base | Rear | with 9 IN x 1-3/4 IN Brakes; R-Line | |
| 1983 | Ford | Mustang | Rear | with 9in Diameter Brake Drum; Replace in Pairs; R-Line | ||
| 1983 | Mercury | Capri | Rear | with 9in Diameter Brake Drum; Replace in Pairs; R-Line | ||
| 1983 | Mercury | Marquis | Rear | Fits drum brake shoe with a 9in diameter brake drum.; R-Line | ||
| 1983 | Mercury | Zephyr | Rear | with 9in Diameter Brake Drum; Replace in Pairs; R-Line | ||
| 1982 | Ford | Fairmont | Rear | with 9in Diameter Brake Drum; Replace in Pairs; R-Line | ||
| 1982 | Ford | Mustang | Rear | with 9in Diameter Brake Drum; Replace in Pairs; R-Line | ||
| 1982 | Ford | Thunderbird | Rear | with 9in Diameter Brake Drum; Replace in Pairs; R-Line | ||
| 1982 | Mercury | Capri | Rear | with 9in Diameter Brake Drum; Replace in Pairs; R-Line | ||
| 1982 | Mercury | Cougar | Rear | with 9in Diameter Brake Drum; Replace in Pairs; R-Line | ||
| 1982 | Mercury | Zephyr | Rear | with 9in Diameter Brake Drum; Replace in Pairs; R-Line | ||
| 1981 | Ford | Fairmont | Rear | with 9in Diameter Brake Drum; Replace in Pairs; R-Line | ||
| 1981 | Ford | Mustang | Rear | with 9in Diameter Brake Drum; Replace in Pairs; R-Line | ||
| 1981 | Ford | Thunderbird | Rear | with 9in Diameter Brake Drum; Replace in Pairs; R-Line | ||
| 1981 | Mercury | Capri | Rear | with 9in Diameter Brake Drum; Replace in Pairs; R-Line | ||
| 1981 | Mercury | Cougar | Rear | with 9in Diameter Brake Drum; Replace in Pairs; R-Line | ||
| 1981 | Mercury | Zephyr | Rear | with 9in Diameter Brake Drum; Replace in Pairs; R-Line | ||
| 1980 | Ford | Fairmont | Rear | with 9in Diameter Brake Drum; Replace in Pairs; R-Line | ||
| 1980 | Ford | Mustang | Rear | with 9in Diameter Brake Drum; Replace in Pairs; R-Line | ||
| 1980 | Ford | Pinto | Rear | R-Line | ||
| 1980 | Ford | Thunderbird | Rear | with 9in Diameter Brake Drum; Replace in Pairs; R-Line | ||
| 1980 | Mercury | Bobcat | Rear | R-Line | ||
| 1980 | Mercury | Capri | Rear | with 9in Diameter Brake Drum; Replace in Pairs; R-Line | ||
| 1980 | Mercury | Cougar | Rear | with 9in Diameter Brake Drum; Replace in Pairs; R-Line | ||
| 1980 | Mercury | Zephyr | Rear | with 9in Diameter Brake Drum; Replace in Pairs; R-Line | ||
| 1979 | Ford | Fairmont | Rear | with 9in Diameter Brake Drum; Replace in Pairs; R-Line | ||
| 1979 | Ford | Mustang | Rear | with 9in Diameter Brake Drum; Replace in Pairs; R-Line | ||
| 1979 | Ford | Pinto | Rear | R-Line | ||
| 1979 | Mercury | Bobcat | Rear | R-Line | ||
| 1979 | Mercury | Capri | Rear | with 9in Diameter Brake Drum; Replace in Pairs; R-Line | ||
| 1979 | Mercury | Zephyr | Rear | with 9in Diameter Brake Drum; Replace in Pairs; R-Line | ||
| 1978 | Ford | Fairmont | Rear | with 9in Diameter Brake Drum; Replace in Pairs; R-Line | ||
| 1978 | Ford | Pinto | Rear | R-Line | ||
| 1978 | Mercury | Bobcat | Rear | R-Line | ||
| 1978 | Mercury | Zephyr | Rear | with 9in Diameter Brake Drum; Replace in Pairs; R-Line | ||
| 1977 | Ford | Pinto | Rear | R-Line | ||
| 1977 | Mercury | Bobcat | Rear | R-Line | ||
| 1976 | Ford | Pinto | Rear | R-Line | ||
| 1976 | Mercury | Bobcat | Rear | R-Line | ||
| 1975 | Ford | Pinto | Rear | R-Line | ||
| 1975 | Mercury | Bobcat | Rear | R-Line | ||
| 1974 | Ford | Pinto | Rear | R-Line |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.