ACDelco 18B80 | Rear Brake Drum

Part Number

18B80

Rear Brake Drum

Fits: Buick Century, Buick Electra, Buick Estate Wagon, Buick LeSabre, Buick Regal, Buick Riviera, Buick Skylark, Cadillac Brougham, Chevrolet Camaro, Chevrolet Caprice, Chevrolet Chevelle, Chevrolet El Camino, Chevrolet Impala, Chevrolet Laguna, Chevrolet LLV, Chevrolet Malibu, Chevrolet Monte Carlo, Chevrolet Nova, Chevrolet S10, Chevrolet S10 Blazer, GMC Caballero, GMC S15, GMC S15 Jimmy, GMC Sonoma, GMC Syclone, Oldsmobile 98, Oldsmobile Bravada, Oldsmobile Custom Cruiser, Oldsmobile Cutlass, Oldsmobile Cutlass Calais, Oldsmobile Cutlass Cruiser, Oldsmobile Cutlass Salon, Oldsmobile Cutlass Supreme, Oldsmobile Delta 88, Oldsmobile Omega, Oldsmobile Toronado, Pontiac Bonneville, Pontiac Catalina, Pontiac Firebird, Pontiac Grand Am, Pontiac Grand LeMans, Pontiac Grand Prix, Pontiac Grand Safari, Pontiac LeMans, Pontiac Parisienne, Pontiac Phoenix, Pontiac Ventura

Special Price $50.95 Regular Price $59.94

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In stock

Estimated Ship Date: 1 Business Day or Less

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Details

ACDelco Professional Brake Drums are constructed with G3000 SAE qualified material for structural integrity and maximum service life. They are tested to ISO/TS 16949 quality system standards and validated for balance to provide better braking performance. Chamfer angle, vane configuration, and plate thickness all follow the OE design, making them a premium aftermarket replacement for your GM and non-GM vehicle. Also, no machining is required. ACDelco Professional Brake Drums are ready to be installed right out of the box. ? WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov

BRAND: ACDelco

FEATURES:

Buick;Cadillac;Chevrolet;GMC;Oldsmobile;Pontiac
Follows original manufacturers' designs for dispersing heat, helping to prolong pad and rotor life while reducing noise and vibration
Independently tested with Noise/Vibration/Harshness (NVH) and durability/wear testing; resulting in high quality and reliable products
Inspected for balance; resulting in smooth brake operation and noise reduction

SPECIFICS:

ABS Sensor Ring Included	No
Bolt Circle Diameter (in)	4.75
Bolt Circle Diameter (mm)	120.7
Bolt Hole Quantity	5
Brake Surface Finish	Turned
Center Bore Diameter (in)	2.78 in
Center Bore Diameter (mm)	70.7 mm
Discard Thickness (in)	9.59
Discard Thickness (mm)	243.6
FAQ - Answer 1	No, but it is a good idea to inspect them for wear-out, cracking, leaking etc.
FAQ - Answer 2	Yes, ACDelco also offers GM OE and Advantage brake drums.
FAQ - Answer 3	No, but it is a good idea to inspect them at every tire rotation.
FAQ - Question 1	Do I have to replace all my brake parts when replacing my brake drums?
FAQ - Question 2	Does ACDelco offer other grades of brake drums?
FAQ - Question 3	Do I have to replace my brake drums after a certain amount of time?
Good Maintenance Practices - Section 1 - Bullet 1	Check brake fluid level at every oil change. Replace fluid according to owner's manual recommendations.
Good Maintenance Practices - Section 1 - Bullet 2	Calipers and wheel cylinders should be checked every brake inspection and serviced or replaced as required.
Good Maintenance Practices - Section 1 - Bullet 3	Inspect the brake lines for rust, punctures, or visible leaks (You may be able to do this, but consult a qualified technician if necessary).
Good Maintenance Practices - Section 1 - Bullet 4	Check the thickness of your brake pads.
Good Maintenance Practices - Section 1 - Header	The following inspections and maintenance procedures can help prevent potential brake problems:
Good Maintenance Practices - Section 2 - Bullet 1	Inspection of the brake hoses for brittleness or cracking.
Good Maintenance Practices - Section 2 - Bullet 2	Inspection of brake lining and pads for wear or contamination by brake fluid or grease.
Good Maintenance Practices - Section 2 - Bullet 3	Inspection of wheel bearings and grease seals.
Good Maintenance Practices - Section 2 - Bullet 4	Parking brake adjustments (as needed).
Good Maintenance Practices - Section 2 - Header	The following should be conducted by a qualified technician:
Grade Type	Regular
Height (in)	4.6
Length (in)	9.59
Material	Cast Iron
Mount Hole Diameter (in)	0.531 in
Mount Hole Diameter (mm)	13.487 mm
Outer Cooling Fins	Yes
Programming Required	No
Signs of Wear & Troubleshooting - Section 1 - Bullet 4	Squealing or scraping noises.
Signs of Wear & Troubleshooting - Section 1 - Bullet 5	Brake pedal pulsation (not to be confused with normal ABS operation).
Weight (lb)	16
Width (in)	13.1

DOWNLOADS:

APPLICATIONS:

1977-1981 Pontiac Catalina - Position: Rear

Replace in Pairs w/ 9 1/2" X 2" Brakes

1989-1989 GMC S15 Jimmy - Position: Rear

Cast Iron Do Not Use with OEM Metallic Lining Replace in Pairs

1982-1991 Chevrolet S10 - Position: Rear

with Cast Iron Drum Do Not Use with OEM Metallic Lining Replace in Pairs

1973-1975 Pontiac Grand Prix - Position: Rear

w/ 9 1/2" Brakes

1973-1975 Chevrolet El Camino - Position: Rear

Replace in Pairs w/ 9 1/2" Brakes

1973-1973 Chevrolet Malibu - Position: Rear
1982-1983 Chevrolet Malibu - Position: Rear

with Cast Iron Drum

1977-1981 Oldsmobile 98 - Position: Rear

with Cast Iron Drum w/ 9 1/2" Brakes

1973-1973 Chevrolet Laguna - Position: Rear
1978-1980 Pontiac Grand LeMans - Position: Rear

Replace in Pairs w/ 9 1/2" Brakes

1977-1983 Buick Estate Wagon - Position: Rear

For Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs w/ 9 1/2" Brakes

1978-1981 Oldsmobile Cutlass - Position: Rear

Replace in Pairs

1978-1988 Oldsmobile Cutlass Supreme - Position: Rear

Replace in Pairs

1982-1990 GMC S15 - Position: Rear

Do Not Use with OEM Metallic Lining Replace in Pairs

1978-1981 Chevrolet Malibu - Position: Rear

Replace in Pairs

1978-1992 Chevrolet Camaro - Position: Rear

Do Not Use with OEM Metallic Lining Replace in Pairs

1978-1987 Pontiac Grand Prix - Position: Rear

Replace in Pairs w/ 9 1/2" Brakes

1980-1983 Oldsmobile Cutlass Cruiser - Position: Rear

Replace in Pairs

1978-1984 Oldsmobile Cutlass Calais - Position: Rear

Replace in Pairs

1976-1977 Pontiac Ventura - Position: Rear

Do Not Use with OEM Metallic Lining w/ 9 1/2" Brakes

1981-1981 Pontiac LeMans - Position: Rear

Replace in Pairs

1981-1985 Buick Riviera - Position: Rear

For Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs w/ 9 1/2" Brakes

1970-1975 Pontiac Firebird - Position: Rear
1977-1980 Buick Riviera - Position: Rear

with Cast Iron Drum w/ 9 1/2" Brakes

1977-1979 Pontiac Phoenix - Position: Rear

w/ 9 1/2" Brakes

1975-1979 Oldsmobile Omega - Position: Rear

w/ 9 1/2" Brakes

1978-1988 Chevrolet Monte Carlo - Position: Rear

Replace in Pairs w/ 9 1/2" Brakes

1978-1980 Pontiac LeMans - Position: Rear

Replace in Pairs w/ 9 1/2" Brakes

1973-1975 Buick Regal - Position: Rear

w/ 9 1/2" X 2" Brakes

1985-1987 Oldsmobile Cutlass - Position: Rear

Replace in Pairs

1979-1983 Oldsmobile Toronado - Position: Rear
1975-1979 Chevrolet Nova - Position: Rear

Replace in Pairs w/ 9 1/2" Brakes

1991-1991 GMC Syclone - Position: Rear

Do Not Use with OEM Metallic Lining Replace in Pairs

1973-1973 Chevrolet Chevelle - Position: Rear
1977-1985 Oldsmobile Delta 88 - Position: Rear

Replace in Pairs w/ 9 1/2" Brakes

1975-1977 Chevrolet Camaro - Position: Rear

with Cast Iron Drum Do Not Use with OEM Metallic Lining

1978-1980 Pontiac Grand Am - Position: Rear

Replace in Pairs w/ 9 1/2" Brakes

1970-1972 Buick Skylark - Position: Rear
1987-1988 Chevrolet LLV - Position: Rear

Rear Axle Stamped # HTJ OR HTK

1978-1987 Chevrolet El Camino - Position: Rear

with Cast Iron Drum Replace in Pairs

1973-1975 Oldsmobile Cutlass - Position: Rear

w/ 9 1/2" Brakes

1991-1991 GMC Sonoma - Position: Rear

Do Not Use with OEM Metallic Lining

1988-1989 GMC S15 Jimmy - Position: Rear
1977-1990 Chevrolet Caprice - Position: Rear

Do Not Use with OEM Metallic Lining Replace in Pairs w/ 9 1/2" Brakes

1970-1970 Chevrolet Monte Carlo - Position: Rear

with 9in x 2-1/2in Brakes Cut Out Axle Cover Non-Flared Center Hole w/ Pontiac Axle

1981-1981 Pontiac Grand LeMans - Position: Rear

Replace in Pairs

1973-1975 Oldsmobile Cutlass Supreme - Position: Rear

w/ 9 1/2" Brakes

1977-1985 Chevrolet Impala - Position: Rear

Do Not Use with OEM Metallic Lining w/ 9 1/2" Brakes

1978-1981 Buick Century - Position: Rear

Replace in Pairs w/ 9 1/2" Brakes

1977-1985 Oldsmobile Custom Cruiser - Position: Rear

Replace in Pairs w/ 9 1/2" Brakes

1985-1987 Oldsmobile Cutlass Salon - Position: Rear

Replace in Pairs

1977-1986 Pontiac Bonneville - Position: Rear

Replace in Pairs w/ 9 1/2" X 2" Brakes

1978-1987 GMC Caballero - Position: Rear

Replace in Pairs

1976-1992 Pontiac Firebird - Position: Rear

Replace in Pairs w/ 9 1/2" Brakes

1977-1985 Buick LeSabre - Position: Rear

For Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs w/ 9 1/2" Brakes

1977-1986 Buick Electra - Position: Rear

For Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs w/ 9 1/2" Brakes

1983-1988 GMC S15 Jimmy - Position: Rear

Do Not Use with OEM Metallic Lining Replace in Pairs

1978-1980 Oldsmobile Cutlass Salon - Position: Rear

Replace in Pairs

1991-1991 Oldsmobile Bravada - Position: Rear
1977-1978 Pontiac Grand Safari - Position: Rear

Replace in Pairs w/ 9 1/2" X 2" Brakes

1973-1975 Buick Century - Position: Rear

w/ 9 1/2" X 2" Brakes

1977-1986 Pontiac Parisienne - Position: Rear

Replace in Pairs w/ 9 1/2" X 2" Brakes

1983-1991 Chevrolet S10 Blazer - Position: Rear

with Cast Iron Drum Do Not Use with OEM Metallic Lining Replace in Pairs

1976-1979 Buick Skylark - Position: Rear

For Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs w/ 9 1/2" Brakes

1978-1987 Buick Regal - Position: Rear

For Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs w/ 9 1/2" Brakes

1990-1991 GMC S15 Jimmy - Position: Rear

Cast Iron For Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs

1988-1989 Cadillac Brougham - Position: Rear

with Cast Iron Drum w/ 9 1/2" Brakes

Product Questions (3)

Customer Questions

Does AC Delco make Ford parts?

No, AC Delco produces parts primarily for General Motors vehicles and does not make parts specifically for Ford vehicles.

Can I use AC Delco parts to replace OEM parts?

Yes, in most cases AC Delco parts can be used as a replacement for OEM parts. However, it's important to ensure that the parts are compatible with your specific make and model of vehicle.

What AC Delco oil filter do I need?

AC Delco offers a variety of oil filters that are compatible with different makes and models of vehicles. To determine which AC Delco oil filter you need, consult your vehicle's owner's manual or use our online filter lookup tool that matches the make, model, and year of your vehicle.