ACDelco 18B277A | Rear Brake Drum

Part Number
18B277A
Rear Brake Drum

Fits: 92-99 Chevrolet C2500 Suburban, 92-00 Chevrolet C3500, 92-99 Chevrolet K2500 Suburban, 92-00 Chevrolet K3500, 92-99 GMC C2500 Suburban, 92-00 GMC C3500, 92-99 GMC K2500 Suburban, 92-00 GMC K3500, 96-02 Chevrolet Express 2500, 96-02 Chevrolet Express 3500, 96 Chevrolet G30, 96 GMC G3500, 96-02 GMC Savana 2500, 96-02 GMC Savana 3500

Special Price $143.99 Regular Price $159.99
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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
  • 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 Quantity8
Brake Surface FinishDirectional
Center Bore Diameter (in)4.8 in
Center Bore Diameter (mm)121.9 mm
Cooling FinsYes
FAQ - Answer 1No, but it is a good idea to inspect them for wear-out, cracking, leaking, etc.
FAQ - Answer 2Yes, ACDelco also offers GM OE and Professional brake drums.
FAQ - Answer 3No, but it is a good idea to inspect them at every tire rotation.
FAQ - Question 1Do I have to replace all my brake parts when replacing my brake drums?
FAQ - Question 2Does ACDelco offer other grades of brake drums?
FAQ - Question 3Do I have to replace my brake drums after a certain amount of time?
Good Maintenance Practices - Section 1 - Bullet 1Check brake fluid level at every oil change. Replace fluid according to owner's manual recommendations.
Good Maintenance Practices - Section 1 - Bullet 2Calipers and wheel cylinders should be checked every brake inspection and serviced or replaced as required.
Good Maintenance Practices - Section 1 - Bullet 3Inspect 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 - HeaderThe following inspections and maintenance procedures can help prevent potential brake problems:
Good Maintenance Practices - Section 2 - Bullet 1Inspection of the brake hoses for brittleness or cracking.
Good Maintenance Practices - Section 2 - Bullet 2Inspection of brake lining and pads for wear or contamination by brake fluid or grease.
Good Maintenance Practices - Section 2 - Bullet 3Inspection of wheel bearings and grease seals.
Good Maintenance Practices - Section 2 - Bullet 4Parking brake adjustments (as needed).
Good Maintenance Practices - Section 2 - HeaderThe following should be conducted by a qualified technician:
Height (in)9
Includes ABS Sensor RingNo
Length (in)17.3
MaterialCast 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 RequiredNo
Signs of Wear & Troubleshooting - Section 1 - Bullet 4Squealing or scraping noises.
Signs of Wear & Troubleshooting - Section 1 - Bullet 5Brake pedal pulsation (not to be confused with normal ABS operation).
Weight (lb)57
Width (in)17.3



DOWNLOADS:




APPLICATIONS:


  • 1996-2002 Chevrolet Express 3500 - Position: Rear
  • 2002-2002 Chevrolet Express 3500 - Position: Rear
    • w/ 13" Brakes Single Rear Wheels
  • 1996-2002 GMC Savana 3500 - Position: Rear
    • Single Rear Wheels
  • 1998-2000 GMC C3500 - Position: Rear
    • w/o Dual Rear Wheels
  • 1992-1999 GMC C2500 Suburban - Position: Rear
    • w/ 13" X 3 1/2" Brakes
  • 1996-1996 Chevrolet Express 3500 - Position: Rear
    • w/ 13" Brakes Single Rear Wheels
  • 1998-1998 Chevrolet Express 3500 - Position: Rear
    • w/ 13" Brakes Single Rear Wheels
  • 1997-1997 Chevrolet Express 3500 - Position: Rear
    • Single Rear Wheels
  • 1992-1997 Chevrolet C3500 - Position: Rear
    • with 9000lb & 9200lb GVW
  • 1996-2002 Chevrolet Express 2500 - Position: Rear
    • with Hydraulic Brake System w/ 13" X 3 1/2" Brakes w/ 8 Lug Wheels
  • 2001-2001 Chevrolet Express 3500 - Position: Rear
    • Single Rear Wheels
  • 1992-1997 GMC C3500 - Position: Rear
    • with 9000lb & 9200lb GVW
  • 1998-2000 Chevrolet C3500 - Position: Rear
    • w/o Dual Rear Wheels
  • 1992-2000 GMC K3500 - Position: Rear
    • with 9200lb GVW
  • 1992-2000 Chevrolet K3500 - Position: Rear
    • with 9000lb & 9200lb GVW
  • 1996-1996 GMC G3500 - Position: Rear
    • w/ 13" Brakes w/o Dual Rear Wheels
  • 1996-2002 GMC Savana 2500 - Position: Rear
    • with Hydraulic Brake System w/ 13" X 3 1/2" Brakes w/ 8 Lug Wheels
  • 1996-1996 Chevrolet G30 - Position: Rear
    • w/ 13" Brakes w/o Dual Rear Wheels
  • 1999-1999 Chevrolet Express 3500 - Position: Rear
    • Single Rear Wheels
  • 1992-1998 Chevrolet K3500 - Position: Rear
    • with 9200lb GVW
  • 1992-1999 Chevrolet K2500 Suburban - Position: Rear
    • w/ 13" X 3 1/2" Brakes
  • 1992-1999 GMC K2500 Suburban - Position: Rear
    • w/ 13" X 3 1/2" Brakes
  • 2000-2000 Chevrolet Express 3500 - Position: Rear
    • w/ 13" Brakes Single Rear Wheels
  • 1992-2000 GMC K3500 - Position: Rear
    • with 9000lb & 9200lb GVW
  • 1992-1999 Chevrolet C2500 Suburban - Position: Rear
    • w/ 13" X 3 1/2" Brakes
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.
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