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1978 Chevrolet G30

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ACDelco 18B40 Brake Drum
for 1978 Chevrolet G30

ACDelco 18B40 Brake Drum - 1978 Chevrolet G30 Image 1
ACDelco 18B40 Brake Drum - 1978 Chevrolet G30 Image 2
ACDelco 18B40 Brake Drum - 1978 Chevrolet G30 Image 3
ACDelco 18B40 Brake Drum - 1978 Chevrolet G30 Image 4
ACDelco 18B40 Brake Drum - 1978 Chevrolet G30

ACDelco
Brand:ACDelco
Part Number: 18B40
UPC: 00036666682922
Weight: 26.35 lbs
Condition:New



On Sale:

$73.95

Availability:
2 in Stock
Warehouse: US-12
Quantity:

Product Information

Description:

BRK DRUM (B)

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

Features and Benefits:

  • 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

Specifications:

ABS Tone Ring Included:
No
Bolt Circle Diameter (in):
6.5 in
Bolt Circle Diameter (mm):
165.1 mm
Bolt Hole Quantity:
8
Brake Surface Finish:
Turned
Center Bore Diameter (in):
4.6in
Center Bore Diameter (mm):
116.8mm
Depth:
3.52 in.
Depth:
89.4 mm
Discard Thickness (in):
11.21 in
Discard Thickness (mm):
284.7 mm
Grade Type:
Regular
Height (in):
4 in
Length (in):
11.21 in
Material:
Cast Iron
Maximum Brake Diameter (Discard):
284.73 mm
Measurements:
11 5/32 X 2 3/4 in
Mount Hole Diameter (in):
0.63in
Mount Hole Diameter (mm):
16.002mm
Nominal Drum Diameter:
0.441 in.
Nominal Drum Diameter:
11.2 mm
Outer Cooling Fins:
Yes
Outside Diameter:
0.539 in.
Outside Diameter:
13.7 mm
Programming Required:
No
Stud/Lug Hole Diameter:
0.622 in.
Stud/Lug Hole Diameter:
15.8 mm
Stud/Lug Hole Quantity:
8
Weight:
26.35 lb
Width (in):
14.6 in

Features and Benefits:

  • – Calipers and wheel cylinders should be checked every brake inspection and serviced or replaced as required.
  • – Check brake fluid level at every oil change. Replace fluid according to owner's manual recommendations.
  • – Check the thickness of your brake pads.
  • – Inspect the brake lines for rust, punctures, or visible leaks (You may be able to do this, but consult a qualified technician if necessary).
  • – Inspection of brake lining and pads for wear or contamination by brake fluid or grease.
  • – Inspection of the brake hoses for brittleness or cracking.
  • – Inspection of wheel bearings and grease seals.
  • – Parking brake adjustments (as needed).
  • The following inspections and maintenance procedures can help prevent potential brake problems:
  • The following should be conducted by a qualified technician:

Specifications:

Country of Origin:
US

ACDelco 18B40 Brake Drum compatibility with your 1978 Chevrolet G30...

Last Updated: 03/03/2024

Years Vehicle Per Vehicle Position Fit NotesFitment Notes

1984

 

1983

 

1982

 

1981

 

1980

 

1979

 

1978

 

1977

 

1976

 

1975

 

1984

 

1983

 

1982

 

1981

 

1980

 

1979

 

1978

 

1977

 

1976

 

1975

 
Chevrolet G30

5.7L V8 Gas OHV
2
 
Rear
 
Professional
without Dual Rear Wheels
with 11 IN Brakes
 

Chevrolet G30



5.7L V8 Gas OHV

Rear Professional
without Dual Rear Wheels
with 11 IN Brakes

2 Per Vehicle

1980

 

1979

 

1978

 

1977

 

1976

 

1975

 

1980

 

1979

 

1978

 

1977

 

1976

 

1975

 
Chevrolet G30

6.6L V8 Gas OHV
2
 
Rear
 
Professional
without Dual Rear Wheels
with 11 IN Brakes
 

Chevrolet G30



6.6L V8 Gas OHV

Rear Professional
without Dual Rear Wheels
with 11 IN Brakes

2 Per Vehicle

1979

 

1978

 

1979

 

1978

 
Chevrolet G30

4.1L L6 Gas OHV,
5.0L V8 Gas OHV
2
 
Rear
 
Professional
without Dual Rear Wheels
with 11 IN Brakes
 

Chevrolet G30



4.1L L6 Gas OHV,
5.0L V8 Gas OHV

Rear Professional
without Dual Rear Wheels
with 11 IN Brakes

2 Per Vehicle

1979

 

1978

 

1977

 

1976

 

1975

 

1979

 

1978

 

1977

 

1976

 

1975

 
Chevrolet G30

4.8L L6 Gas OHV
2
 
Rear
 
Professional
without Dual Rear Wheels
with 11 IN Brakes
 

Chevrolet G30



4.8L L6 Gas OHV

Rear Professional
without Dual Rear Wheels
with 11 IN Brakes

2 Per Vehicle

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