ACDelco 18B254A | Rear Brake Drum

Part Number

18B254A

Rear Brake Drum

Fits: 74 Chevrolet C30 Pickup, 74 Chevrolet G30 Van, 74 Chevrolet P30 Van, 74 GMC C35/C3500 Pickup, 74 GMC G35/G3500 Van, 74 GMC P35/P3500 Van, 75-86 Chevrolet C30, 75-96 Chevrolet G30, 75-99 Chevrolet P30, 75-78 GMC C35, 75-78 GMC G35, 75-78 GMC P35, 77-86 Chevrolet K30, 77-78 GMC K35, 79-86 GMC C3500, 79-84 GMC G3500, 79-86 GMC K3500, 79-99 GMC P3500, 88-00 GMC C3500, 88-00 GMC K3500, 92-96 GMC G3500, 87-88 Chevrolet R30, 87-88 Chevrolet V30, 87-91 GMC R3500, 87-91 GMC V3500, 88-00 Chevrolet C3500, 88-00 Chevrolet K3500, 89-91 Chevrolet R3500, 89-91 Chevrolet V3500, 96-02 Chevrolet Express 3500, 96-02 GMC Savana 3500, 00-03 Workhorse P30

Special Price $187.01 Regular Price $203.27

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In stock

Estimated Ship Date: 1 Business Day or Less

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Details

ACDelco Advantage Brake Drums are constructed with G3000 material for maximum service life. They are validated for balance to provide better braking performance. Chamfer angle, vane configuration, and plate thickness all follow the OE design. Also, no machining is required. ACDelco Advantage 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:

Chevrolet;GMC;Workhorse
Drums are inspected for balance; resulting in smooth brake operation and noise reduction
Mill-balanced for proper rotor function, no extra weights are needed
Non-directional brake surface finish for consistent braking
Quality validated for proper metallurgy and correct brake plate thickness

SPECIFICS:

Bolt Circle Diameter (in)	6.5
Bolt Circle Diameter (mm)	165.1
Bolt Hole Quantity	8
Brake Surface Finish	Directional
Center Bore Diameter (in)	4.6 in
Center Bore Diameter (mm)	116.8 mm
Cooling Fins	Yes
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 Professional 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 - 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:
Height (in)	9
Includes ABS Sensor Ring	No
Length (in)	17.3
Material	Cast Iron
Mount Hole Diameter (in)	0.619 in
Mount Hole Diameter (mm)	15.723 mm
Nominal Brake Drum Diameter (in)	13 in
Nominal Brake Drum Diameter (mm)	330.2 mm
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)	54
Width (in)	17.3

DOWNLOADS:

APPLICATIONS:

1987-1991 GMC V3500 - Position: Rear

w/ Dual Rear Wheels w/ 13" X 3 1/2" Brakes

1987-1988 Chevrolet R30 - Position: Rear

w/ Dual Rear Wheels w/ 13" X 3 1/2" Brakes

1977-1977 Chevrolet P30 - Position: Rear

w/ Dual Rear Wheels w/ 13" X 3 1/2" Brakes

1988-1991 Chevrolet C3500 - Position: Rear

w/ Dual Rear Wheels w/ 13" X 3 1/2" Brakes

1992-1997 Chevrolet C3500 - Position: Rear

with 10000lb , 11000lb or 12000lb GVW w/ Dual Rear Wheels

1974-1974 GMC G35/G3500 Van - Position: Rear

w/ Dual Rear Wheels

1977-1986 Chevrolet K30 - Position: Rear

w/ Dual Rear Wheels

1998-1998 Chevrolet P30 - Position: Rear

w/ Dual Rear Wheels

1979-1984 GMC G3500 - Position: Rear

w/ Dual Rear Wheels

1975-1975 Chevrolet P30 - Position: Rear

w/ Dual Rear Wheels w/ 13" X 3 1/2" Brakes

1998-2000 GMC C3500 - Position: Rear

w/ Dual Rear Wheels

1989-1991 Chevrolet V3500 - Position: Rear

w/ Dual Rear Wheels w/ 13" X 3 1/2" Brakes

1974-1974 Chevrolet P30 Van - Position: Rear

w/ Dual Rear Wheels

1992-2000 Chevrolet K3500 - Position: Rear

with 11000lb GVW w/ Dual Rear Wheels w/ 12,000 lb. GVW

1978-1990 Chevrolet P30 - Position: Rear

w/ Dual Rear Wheels

1987-1991 GMC R3500 - Position: Rear

w/ Dual Rear Wheels w/ 13" X 3 1/2" Brakes

1992-1997 GMC C3500 - Position: Rear

with 11000lb GVW w/ Dual Rear Wheels w/ 12,000 lb. GVW

1979-1999 GMC P3500 - Position: Rear

w/ Dual Rear Wheels w/ 13" X 3 1/2" Brakes

1975-1978 GMC P35 - Position: Rear

w/ Dual Rear Wheels w/ 13" X 3 1/2" Brakes

1990-1991 GMC C3500 - Position: Rear

w/ Dual Rear Wheels w/ 13" X 3 1/2" Brakes

1999-1999 Chevrolet P30 - Position: Rear

w/ Dual Rear Wheels w/ 13" X 3 1/2" Brakes

1974-1974 Chevrolet G30 Van - Position: Rear

w/ Dual Rear Wheels

1975-1978 GMC C35 - Position: Rear

w/ Dual Rear Wheels

1987-1988 Chevrolet V30 - Position: Rear

w/ Dual Rear Wheels w/ 13" X 3 1/2" Brakes

1975-1978 GMC G35 - Position: Rear

w/ Dual Rear Wheels

1992-1996 GMC G3500 - Position: Rear

w/ Dual Rear Wheels

1996-2002 Chevrolet Express 3500 - Position: Rear

w/ Dual Rear Wheels

1990-1991 GMC K3500 - Position: Rear

w/ Dual Rear Wheels w/ 13" X 3 1/2" Brakes

1979-1986 GMC C3500 - Position: Rear

w/ Dual Rear Wheels

1991-1997 Chevrolet P30 - Position: Rear

w/ Dual Rear Wheels w/ 13" X 3 1/2" Brakes

1998-2000 Chevrolet C3500 - Position: Rear

w/ Dual Rear Wheels

1974-1974 GMC C35/C3500 Pickup - Position: Rear

w/ Dual Rear Wheels

1977-1978 GMC K35 - Position: Rear

w/ Dual Rear Wheels

1996-2002 GMC Savana 3500 - Position: Rear

w/ Dual Rear Wheels

1975-1996 Chevrolet G30 - Position: Rear

w/ Dual Rear Wheels

1974-1974 GMC P35/P3500 Van - Position: Rear

w/ Dual Rear Wheels w/ 13" X 3 1/2" Brakes

1975-1986 Chevrolet C30 - Position: Rear

w/ Dual Rear Wheels w/ 13" X 3 1/2" Brakes

1976-1976 Chevrolet P30 - Position: Rear

w/ Dual Rear Wheels

1988-1989 GMC K3500 - Position: Rear

w/ Dual Rear Wheels

1992-2000 GMC K3500 - Position: Rear

with 10000lb GVW w/ Dual Rear Wheels w/ 12,000 lb. GVW

1974-1974 Chevrolet C30 Pickup - Position: Rear

w/ Dual Rear Wheels w/ 13" X 3 1/2" Brakes

2000-2003 Workhorse P30 - Position: Rear

Stripped Chassis w/ 13" X 3 1/2" Brakes

1990-1991 Chevrolet K3500 - Position: Rear

w/ Dual Rear Wheels w/ 13" X 3 1/2" Brakes

1988-1989 GMC C3500 - Position: Rear

w/ Dual Rear Wheels

1988-1989 Chevrolet K3500 - Position: Rear

w/ Dual Rear Wheels

1979-1986 GMC K3500 - Position: Rear

w/ Dual Rear Wheels

1989-1991 Chevrolet R3500 - Position: Rear

w/ Dual Rear Wheels w/ 13" X 3 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.