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- Rear Brake Drum Assembly
Part TypeBrake Drum
BrandACDELCO
Package Height4.1
Package Width12.3
Package Length12.3
Weight14.8 PG
Weight18
Part CategoryReplacement Parts
Abs Sensor Ring IncludedNo
Good Maintenance Practices - Section 2 - Bullet 3Inspection of wheel bearings and grease seals.
Good Maintenance Practices - Section 2 - Bullet 4Parking brake adjustments (as needed).
Discard Thickness10.09 in (256.286 mm)
Programming RequiredNo
Stud/Lug Hole Diameter0.566
Good Maintenance Practices - Section 2 - Bullet 1Inspection of the brake hoses for brittleness or cracking.
PositionRear
Discard Thickness (In)10.09
Maximum Brake Diameter (Discard) (Mm)256.29
Good Maintenance Practices - Section 2 - Bullet 2Inspection of brake lining and pads for wear or contamination by brake fluid or grease.
Center Bore Diameter (Mm)71.2mm
Mount Hole Diameter0.574 in (14.58 mm)
Nominal Drum Diameter10.1
Good Maintenance Practices - Section 2 - HeaderThe following should be conducted by a qualified technician:
Center Bore Diameter (In)2.8in
Nominal Drum Diameter (Mm)254
Depth75.2
Good Maintenance Practices - Section 1 - Bullet 1Check brake fluid level at every oil change. Replace fluid according to owner's manual recommendations.
Faq - Answer 3No, but it is a good idea to inspect them at every tire rotation.
Faq - Answer 2Yes, ACDelco also offers GM OE and Advantage brake drums.
New Or RemanufacturedNew
Faq - Answer 1No, but it is a good idea to inspect them for wear-out, cracking, leaking etc.
New Or RemanufacturedNew
Outside Diameter (Mm)297.7
Good Maintenance Practices - Section 1 - Bullet 4Check the thickness of your brake pads.
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).
Grade TypeRegular
Bolt Circle Diameter (Mm)114.3
Features & Benefits - Bullet 2Independently tested with Noise/Vibration/Harshness (NVH) and durability/wear testing; resulting in high quality and reliable products
Bolt Hole Quantity5
Features & Benefits - Bullet 3Follows original manufacturers' designs for dispersing heat, helping to prolong pad and rotor life while reducing noise and vibration
Maximum Brake Diameter (Discard)256.29
Stud/Lug Hole Quantity5
Product DescriptionACDelco 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. C hamfer 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. ⚠<b> WARNING:</b> Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Mount Hole Diameter (In)0.574in
Features &#38; Benefits - Bullet 1Inspected for balance; resulting in smooth brake operation and noise reduction
Discard Thickness (Mm)256.3
Measurements10 in
Good Maintenance Practices - Section 1 - HeaderThe following inspections and maintenance procedures can help prevent potential brake problems:
Width (In)12.3
MaterialCast Iron
Brake Surface FinishTurned
Outer Cooling FinsNo
Mount Hole Diameter (Mm)14.58mm
Height (In)4.8
Bolt Circle Diameter4.5
Signs Of Wear &#38; Troubleshooting - Section 1 - Bullet 4Squealing or scraping noises.
Length (In)10.09
Signs Of Wear &#38; Troubleshooting - Section 1 - Bullet 5Brake pedal pulsation (not to be confused with normal ABS operation).
Abs Tone Ring IncludedNo
Outside Diameter0.461
Faq - Question 3Do I have to replace my brake drums after a certain amount of time?
Faq - Question 2Does ACDelco offer other grades of brake drums?
Faq - Question 1Do I have to replace all my brake parts when replacing my brake drums?
Vendor Part Number18B259
Package Qty1
Package TypeEA
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No Reviews
Some parts are not legal for use in California or other states with similar laws / regulations
