ACDelco Rear Brake Drum For Cadillac Chevrolet Oldsmobile 1959-1990

Product Overview

Description

ABS Tone Ring Included: No
Bolt Circle Diameter (in): 5
Bolt Circle Diameter (mm): 127
Bolt Hole Quantity: 5
Brake Surface Finish: Turned
Center Bore Diameter (in): 3.06in
Center Bore Diameter (mm): 77.8mm
Depth: 3.69
Depth: 93.75
Discard Thickness (in): 12.09
Discard Thickness (mm): 307.1
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?
Features & Benefits - Bullet 1: Inspected for balance; resulting in smooth brake operation and noise reduction
Features & Benefits - Bullet 2: Independently tested with Noise/Vibration/Harshness (NVH) and durability/wear testing; resulting in high quality and reliable products
Features & Benefits - Bullet 3: Follows original manufacturers' designs for dispersing heat, helping to prolong pad and rotor life while reducing noise and vibration
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): 5.6
Length (in): 12.09
Material: Cast Iron
Maximum Brake Diameter (Discard): 307.09
Measurements: 12 X 2 1/2 in
Mount Hole Diameter (in): 0.621in
Mount Hole Diameter (mm): 15.773mm
Nominal Drum Diameter: 0.476
Nominal Drum Diameter: 12.1
Outer Cooling Fins: Yes
Outside Diameter: 0.572
Outside Diameter: 14.5
Product Description: 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
Programming Required: No
Signs of Wear & Troubleshooting - Section 1 - Bullet 1: Squealing or scraping noises.
Signs of Wear & Troubleshooting - Section 1 - Bullet 2: Brake pedal pulsation (not to be confused with normal ABS operation).
Stud/Lug Hole Diameter: 0.613
Stud/Lug Hole Diameter: 15.55
Stud/Lug Hole Quantity: 5
Weight: 28
Width (in): 16.1

Interchange

Please review our interchange above in the compatibility table to verify proper fitment of your vehicle. Or contact us for a quick response.
Keep in mind interchange tables apply only to American Market vehicles. If you live outside the USA, please research and verify it fits your vehicle before purchasing.

We ship from multiple warehouses across the country

Please read before purchasing

Shipping and Cancellation Policy

We ship using FedEx and USPS from the nearest available location to you (see a map above). Tracking numbers will be provided as soon as they are generated. We ship to lower 48 states and globally with eBay’s International Shipping Program (eIS).

Most items ship the same business day if ordered before 4:00 PM EST.

Interchange tables are for American Market Vehicles. Contact us for fitment verification on international vehicles.

All orders are processed automatically, so please ensure the following:

Confirm that the item fits your vehicle by using eBay's fitment tool and thoroughly reviewing the description and notes on the page. If uncertain, reach out to us for assistance.
Verify that the item you're about to purchase will solve the problem with your car.
Verify that you've inputted the correct delivery address at checkout. Address change is not possible after the purchase.

Return Policy

Before returning items or considering leaving anything other than positive feedback, please reach out to us first.

For further return details, please refer to the "Shipping, Returns, and Payments" tab.

It's important to note the distinction between Genuine and OEM/OE Supplier brands. A Genuine part arrives in the original auto manufacturer's packaging with their logo displayed. OEM/OE Supplier parts are licensed by the vehicle manufacturer but do not have the manufacturer's logo.

These parts are often identical to those found at the dealership but may come in a different package. We do not accept returns based solely on these packaging differences.

Additionally, due to globalization, we do not accept returns solely based on the manufacturing location of a part, as brands are often produced in multiple countries.

Electrical Parts Policy

There are NO RETURNS on Electrical parts, components or parts that require CODING/PROGRAMMING unless the part is returned in its original unopened (sealed) box/package.

Warranty

We provide a 30-day warranty on all parts that we sell. If a part malfunctions during this period, please get in touch with us. Normal wear and tear or incorrect installation are not covered under warranty.

To validate the warranty, please ensure the following:

Provide photos of the defect (if possible) along with an explanation of its nature.
Include the Vehicle Identification Number (VIN).
Submit a certified mechanic's report.
This report should contain the installation details, including the date, mileage at the time of installation, and the current mileage of the vehicle.
The report is a concise assessment by a certified mechanic explaining why the purchased part failed and needs to be replaced.

The defective part must be returned in its original manufacturer’s packaging.

Payments Terms

In the rare event of an item being out of stock, you will be promptly notified and refunded. We offer combined shipping for identical items. If you plan to purchase multiple items, please contact us for assistance.