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Raybestos 2585R Brake Drum - Rear
| Brand | Raybestos 2585R |
|---|---|
| Position | Rear |
| Depth | 2.610 |
| Depth | 66.300 |
| Nominal Drum Diameter | 0.378 |
| Nominal Drum Diameter | 9.600 |
| Outer Cooling Fins | Yes |
| Outside Diameter | 0.471 |
| Outside Diameter | 11.950 |
| Stud/Lug Hole Diameter | 0.520 |
| Stud/Lug Hole Diameter | 13.200 |
| Stud/Lug Hole Quantity | 5 |
| Product line | R-Line |
| Fits | Chevrolet, GMC, Isuzu, Pontiac, and Oldsmobile · 55 vehicles |
Cooling fins. Help move heat away for more consistent braking performance.
Brake drum. Built for dependable drum brake service and stopping power.
Cross-references Anchor 2053, Anchor 8988 and Centric Parts 122.66028 for the same application. See all 56.
Raybestos R-Line Brake Drum 2585R
The Raybestos R-Line 2585R brake drum is built for rear brake service on a wide range of Chevrolet, GMC, Isuzu, Oldsmobile, and Pontiac applications. With a 11.950-inch outside diameter, 2.610-inch depth, and 9.600-inch nominal drum diameter, it is sized for direct rear drum brake replacement where the original drum has worn, scored, or lost braking consistency.
Raybestos R-Line focuses on dependable replacement parts for everyday repair work. This brake drum 2585R includes outer cooling fins and a 5-lug hole pattern with 13.200 mm lug hole diameter, supporting proper wheel mounting and heat management in rear brake systems.
Key Features
- Rear brake drum for select Chevrolet S10, GMC Sonoma, and related applications
- 11.950 in. outside diameter and 2.610 in. depth
- 9.600 in. nominal drum diameter
- Outer cooling fins for improved heat dissipation
- 5 stud/lug holes with 13.200 mm lug hole diameter
- Raybestos R-Line replacement part number 2585R
Detailed Product Overview
The Raybestos 2585R brake drum is a rear drum brake component for vehicles including the 1992-2003 Chevrolet S10, 1992-2003 GMC Sonoma, 1996-2000 Isuzu Hombre, 1995-1997 Chevrolet Blazer, 1993-1997 Chevrolet Camaro, 1992-1997 GMC Jimmy, 1993-1997 Pontiac Firebird, 1992-1994 and 1996 Oldsmobile Bravada, and 1992-1994 Chevrolet S10 Blazer. It is engineered around the listed dimensions to match the required rear brake drum geometry for these applications.
This part cross-references DuraGo BD8988 for the same application. The Raybestos R-Line 2585R is a practical choice when replacing a rear brake drum on a Chevrolet S10, GMC Sonoma, or Pontiac Firebird and when maintaining correct drum size and wheel-lug fitment matters.
What This Brake Drum Helps Address
- Rear brake pulsation caused by an out-of-round or worn drum
- Scoring, heat checking, or surface wear on the braking surface
- Reduced braking consistency from an aged rear drum
- Fitment issues when replacing a damaged original drum on compatible rear applications
- Heat buildup in rear drum brake service where cooling fins are beneficial
Installation Notes and Tips
Verify the drum dimensions, lug hole pattern, and rear position before installation. Compare the existing drum to the 11.950-inch outside diameter and 2.610-inch depth listed for the Raybestos 2585R, and confirm the vehicle uses a rear drum brake setup. For best results, inspect brake shoes, wheel cylinders, and related rear brake components during service so the new drum is installed into a clean, properly adjusted system.
Quality Assurance
Raybestos R-Line is a replacement product line used for everyday brake service applications. The 2585R brake drum is built to the listed specifications for consistent fitment on the covered rear applications.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2003 | Chevrolet | S10 | Rear | R-Line |
| 2003 | GMC | Sonoma | Rear | R-Line |
| 2002 | Chevrolet | S10 | Rear | R-Line |
| 2002 | GMC | Sonoma | Rear | R-Line |
| 2001 | Chevrolet | S10 | Rear | R-Line |
| 2001 | GMC | Sonoma | Rear | R-Line |
| 2000 | Chevrolet | S10 | Rear | R-Line |
| 2000 | GMC | Sonoma | Rear | R-Line |
| 2000 | Isuzu | Hombre | Rear | R-Line |
| 1999 | Chevrolet | S10 | Rear | R-Line |
| 1999 | GMC | Sonoma | Rear | R-Line |
| 1999 | Isuzu | Hombre | Rear | R-Line |
| 1998 | Chevrolet | S10 | Rear | R-Line |
| 1998 | GMC | Sonoma | Rear | R-Line |
| 1998 | Isuzu | Hombre | Rear | R-Line |
| 1997 | Chevrolet | Blazer | Rear | R-Line |
| 1997 | Chevrolet | Camaro | Rear | R-Line |
| 1997 | Chevrolet | S10 | Rear | R-Line |
| 1997 | GMC | Jimmy | Rear | R-Line |
| 1997 | GMC | Sonoma | Rear | R-Line |
| 1997 | Isuzu | Hombre | Rear | R-Line |
| 1997 | Pontiac | Firebird | Rear | R-Line |
| 1996 | Chevrolet | Blazer | Rear | R-Line |
| 1996 | Chevrolet | Camaro | Rear | R-Line |
| 1996 | Chevrolet | S10 | Rear | R-Line |
| 1996 | GMC | Jimmy | Rear | R-Line |
| 1996 | GMC | Sonoma | Rear | R-Line |
| 1996 | Isuzu | Hombre | Rear | R-Line |
| 1996 | Oldsmobile | Bravada | Rear | R-Line |
| 1996 | Pontiac | Firebird | Rear | R-Line |
| 1995 | Chevrolet | Blazer | Rear | R-Line |
| 1995 | Chevrolet | Camaro | Rear | R-Line |
| 1995 | Chevrolet | S10 | Rear | R-Line |
| 1995 | GMC | Jimmy | Rear | R-Line |
| 1995 | GMC | Sonoma | Rear | R-Line |
| 1995 | Pontiac | Firebird | Rear | R-Line |
| 1994 | Chevrolet | Camaro | Rear | R-Line |
| 1994 | Chevrolet | S10 | Rear | R-Line |
| 1994 | Chevrolet | S10 Blazer | Rear | R-Line |
| 1994 | GMC | Jimmy | Rear | R-Line |
| 1994 | GMC | Sonoma | Rear | R-Line |
| 1994 | Oldsmobile | Bravada | Rear | R-Line |
| 1994 | Pontiac | Firebird | Rear | R-Line |
| 1993 | Chevrolet | Camaro | Rear | R-Line |
| 1993 | Chevrolet | S10 | Rear | R-Line |
| 1993 | Chevrolet | S10 Blazer | Rear | R-Line |
| 1993 | GMC | Jimmy | Rear | R-Line |
| 1993 | GMC | Sonoma | Rear | R-Line |
| 1993 | Oldsmobile | Bravada | Rear | R-Line |
| 1993 | Pontiac | Firebird | Rear | R-Line |
| 1992 | Chevrolet | S10 | Rear | R-Line |
| 1992 | Chevrolet | S10 Blazer | Rear | R-Line |
| 1992 | GMC | Jimmy | Rear | R-Line |
| 1992 | GMC | Sonoma | Rear | R-Line |
| 1992 | Oldsmobile | Bravada | Rear | R-Line |
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