Raybestos 2045R Brake Drum - Front or Rear

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R-Line

Raybestos 2045R Brake Drum - Front or Rear

Brand	Raybestos 2045R
Position	Rear
Depth	2.420
Depth	61.450
Nominal Drum Diameter	0.376
Nominal Drum Diameter	9.550
Outer Cooling Fins	Yes
Outside Diameter	0.451
Outside Diameter	11.450
Stud/Lug Hole Diameter	0.445
Stud/Lug Hole Diameter	11.300
Stud/Lug Hole Quantity	5
Product line	R-Line
Fits	Buick, Pontiac, Chevrolet, Oldsmobile, and GMC · 46 vehicles

Cooling fins. Outer fins help promote heat dissipation for more consistent braking performance.

Brake drum. Built as a standard drum replacement for drum brake applications.

Cross-references Anchor 8798, Baldwin 20035 and Centric Parts 122.62008 for the same application. See all 62.

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Brake Drums are typically replaced in pairs, axle by axle.

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Raybestos R-Line Brake Drum 2045R

Raybestos R-Line brake drum 2045R is a rear brake drum for classic GM applications that call for a 9.550-inch nominal drum diameter and a 5-lug pattern. It measures 11.450 inches outside diameter and 2.420 inches deep, with outer cooling fins to support heat dissipation in drum brake service.

Key Features

Brake drum for rear axle applications
Nominal drum diameter: 9.550 inches
Outside diameter: 11.450 inches
Depth: 2.420 inches
5 stud/lug holes with 11.300 mm hole diameter
Outer cooling fins for added thermal management
Raybestos R-Line part number 2045R

R-Line Product Line Details

Raybestos R-Line covers everyday brake service parts for repair work that follows original-style dimensions and fitment requirements. For this brake drum, the line focuses on correct drum size, lug pattern, and rear-axle application details needed for service on vehicles such as Chevrolet Camaro, Nova, El Camino, Monte Carlo, Malibu, GMC G15/G1500 Van, and Oldsmobile Omega.

Detailed Description

Use Raybestos 2045R when replacing a rear brake drum on compatible classic GM platforms that require a 9-1/2 inch x 2 inch drum brake setup or the listed finned-drum configuration. This brake drum is referenced for applications including 1964-1972 Chevrolet El Camino, 1967-1974 Chevrolet Camaro, 1970-1974 Chevrolet Nova, 1970-1972 Chevrolet Monte Carlo, 1964-1967 Chevrolet Malibu, 1973-1974 Oldsmobile Omega, and select GMC G15/G1500 Van and G1000 Series models. This part cross-references DuraGo BD8798 and Standard Ignition 2045 for the same application.

What This Brake Drum Helps Address

Rear brake pulsation caused by worn or out-of-round drum surfaces
Reduced braking consistency from drum wear beyond service limits
Heat buildup in drum brake systems with finned-drum requirements
Fitment issues on vehicles needing a 5-lug rear brake drum
Service replacement needs for classic Chevrolet and GMC rear drum brakes

Installation Notes and Tips

Confirm the vehicle’s rear brake configuration before installation, including drum diameter, depth, lug pattern, and any notes about finned drums or self-adjuster repair kits. Several listed applications specify not to use this drum with OEM metallic lining, and some require Chevrolet axle or round axle cover details. Verify the brake hardware and backing plate setup against the vehicle’s original specifications before assembly.

Quality Assurance

Raybestos manufactures brake components for service applications that require accurate dimensional fit and consistent braking performance. The 2045R is built to match the listed specifications for rear drum brake service on the covered Chevrolet, GMC, Buick, and Oldsmobile applications.

This part fits 46 vehicles

Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

Year	Make	Model	Position	Notes
1975	Buick	Skylark	Rear	R-Line
1974	Chevrolet	Camaro	Rear	Do Not Use with OEM Metallic Lining; R-Line
1974	Chevrolet	Nova	Rear	Fits Drum Brake Self-Adjuster Repair Kits for 9-1/2 IN x 2 IN Brakes.; R-Line
1974	Chevrolet	Nova	Rear	Do Not Use with OEM Metallic Lining; with Finned Drum; with 9-1/2 IN x 2 IN Brakes; R-Line
1974	Oldsmobile	Omega	Rear	Fits Drum Brake Self-Adjuster Repair Kits for 9-1/2 IN x 2 IN Brakes.; R-Line
1973	Chevrolet	Camaro	Rear	Do Not Use with OEM Metallic Lining; R-Line
1973	Chevrolet	Nova	Rear	Fits Drum Brake Self-Adjuster Repair Kits for 9-1/2 IN x 2 IN Brakes.; R-Line
1973	Chevrolet	Nova	Rear	Do Not Use with OEM Metallic Lining; with Finned Drum; with 9-1/2 IN x 2 IN Brakes; R-Line
1973	Oldsmobile	Omega	Rear	Fits Drum Brake Self-Adjuster Repair Kits for 9-1/2 IN x 2 IN Brakes.; R-Line
1972	Chevrolet	Camaro	Rear	Do Not Use with OEM Metallic Lining; R-Line
1972	Chevrolet	El Camino	Rear	Chevrolet Bolt Pattern; Replace in Pairs; Round Axle Cover; R-Line
1972	Chevrolet	Monte Carlo	Rear	with CHEVROLET Axle; Round Axle Cover; R-Line
1972	Chevrolet	Nova	Rear	Fits Drum Brake Self-Adjuster Repair Kits for 9-1/2 IN x 2 IN Brakes.; R-Line
1972	Chevrolet	Nova	Rear	Do Not Use with OEM Metallic Lining; with Finned Drum; with 9-1/2 IN x 2 IN Brakes; R-Line
1971	Chevrolet	Camaro	Rear	Do Not Use with OEM Metallic Lining; R-Line
1971	Chevrolet	El Camino	Rear	Chevrolet Bolt Pattern; Replace in Pairs; Round Axle Cover; R-Line
1971	Chevrolet	Monte Carlo	Rear	with CHEVROLET Axle; Round Axle Cover; R-Line
1971	Chevrolet	Nova	Rear	Fits Drum Brake Self-Adjuster Repair Kits for 9-1/2 IN x 2 IN Brakes.; R-Line
1971	Chevrolet	Nova	Rear	Do Not Use with OEM Metallic Lining; with Finned Drum; with 9-1/2 IN x 2 IN Brakes; R-Line
1971	GMC	G15/G1500 Van	Rear	with 2,400lb Rear Axle; Do Not Use with OEM Metallic Lining; R-Line
1970	Chevrolet	Camaro	Rear	Do Not Use with OEM Metallic Lining; R-Line
1970	Chevrolet	El Camino	Rear	Chevrolet Bolt Pattern; Replace in Pairs; Round Axle Cover; R-Line
1970	Chevrolet	Monte Carlo	Rear	with CHEVROLET Axle; Round Axle Cover; R-Line
1970	Chevrolet	Nova	Rear	Fits Drum Brake Self-Adjuster Repair Kits for 9-1/2 IN x 2 IN Brakes.; R-Line
1970	Chevrolet	Nova	Rear	Do Not Use with OEM Metallic Lining; with Finned Drum; with 9-1/2 IN x 2 IN Brakes; R-Line
1970	GMC	G15/G1500 Van	Rear	Do Not Use with OEM Metallic Lining; with 9.5 IN Brakes; R-Line
1969	Chevrolet	Camaro	Rear	Do Not Use with OEM Metallic Lining; R-Line
1969	Chevrolet	El Camino	Rear	Fits Drum Brake Self-Adjuster Repair Kits for 9-1/2 IN x 2 IN Brakes.; R-Line
1969	Chevrolet	Nova	Rear	R-Line
1969	GMC	G15/G1500 Van	Rear	Do Not Use with OEM Metallic Lining; R-Line
1968	Chevrolet	Camaro	Rear	Do Not Use with OEM Metallic Lining; R-Line
1968	Chevrolet	El Camino	Rear	Fits Drum Brake Self-Adjuster Repair Kits for 9-1/2 IN x 2 IN Brakes.; R-Line
1968	GMC	G15/G1500 Van	Rear	Do Not Use with OEM Metallic Lining; R-Line
1967	Chevrolet	Camaro	Rear	Do Not Use with OEM Metallic Lining; R-Line
1967	Chevrolet	El Camino	Rear	Fits Drum Brake Self-Adjuster Repair Kits for 9-1/2 IN x 2 IN Brakes.; R-Line
1967	Chevrolet	Malibu	Rear	Fits Drum Brake Self-Adjuster Repair Kits for 9-1/2 IN x 2 IN Brakes.; R-Line
1967	GMC	G15/G1500 Van	Rear	Do Not Use with OEM Metallic Lining; R-Line
1966	Chevrolet	El Camino	Rear	Fits Drum Brake Self-Adjuster Repair Kits for 9-1/2 IN x 2 IN Brakes.; R-Line
1966	Chevrolet	Malibu	Rear	Fits Drum Brake Self-Adjuster Repair Kits for 9-1/2 IN x 2 IN Brakes.; R-Line
1966	GMC	G1000 Series	Rear	Do Not Use with OEM Metallic Lining; with 9-1/2 IN x 2 IN Brakes; R-Line
1965	Chevrolet	El Camino	Rear	Fits Drum Brake Self-Adjuster Repair Kits for 9-1/2 IN x 2 IN Brakes.; R-Line
1965	Chevrolet	Malibu	Rear	Fits Drum Brake Self-Adjuster Repair Kits for 9-1/2 IN x 2 IN Brakes.; R-Line
1965	GMC	G1000 Series	Rear	Do Not Use with OEM Metallic Lining; with 9-1/2 IN x 2 IN Brakes; R-Line
1964	Chevrolet	El Camino	Rear	Fits Drum Brake Self-Adjuster Repair Kits for 9-1/2 IN x 2 IN Brakes.; R-Line
1964	Chevrolet	Malibu	Rear	Fits Drum Brake Self-Adjuster Repair Kits for 9-1/2 IN x 2 IN Brakes.; R-Line
1964	GMC	G1000 Series	Rear	Do Not Use with OEM Metallic Lining; with 9-1/2 IN x 2 IN Brakes; R-Line
No rows match your filter.

Directly replaces or cross-references 62 part numbers

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.

Anchor — 8798Baldwin — 20035Centric Parts — 122.62008Centric Parts — 123.62008DuraGo — BD8798FEL-PRO — 1908Gates — 23064OSC — 1912OSC — 4798Raybestos Brakes — 2045RStandard Ignition — 20453-82514.8256.8552-6009463-93-51088-36008177-125177-230219-2312219-2318788-360081475-870042045DGS5207-104-68798G600226009479911140053201980345121393510525037683105384117638411883853712385391239874453996135399614546020459987445AD8208AD8208EBD1017BD1046BD2065FBD60022BD60094BD87980D2026D2045D93510G2045K2026K2045P60094SB2045X21391YH6087YH140053

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