GM 8640496 Axle Vent Bolt Differential Nos

( Brand: Gm ), ( Manufacturer Part Number: 8640496 ), ( Part Type: Axle Vent Bolt ), ( Manufacturer Warranty: No ), ( Country Of Manufacture: United States ), ( Surface Finish: Plastic ), ( Vintage Part: Yes ), ( Placement On Vehicle: Rear )

Review GM Chevrolet Pontiac Axle Vent And Bolt Differential Nos fits 1953-79–2012

Introducing the GM 8640496 axle vent for 1953-79 Chevrolet and Pontiac vehicles with 10 and 12 bolt differentials. This essential component is an original equipment manufacturer (OEM) part designed to ensure the proper functioning of your differential assembly.

The axle vent is a crucial part of your vehicle's differential cooling system. It allows air to enter the differential housing, which helps cool the lubricating fluid inside. The cooling process is essential to prevent the differential from overheating and potentially causing damage to other components.

This vent measures approximately 2 inches in length, 1 inch in width, and 0.5 inches in height, making it a compact yet essential addition to your differential assembly. It is designed to fit seamlessly into the differential housing of your 1953-79 Chevrolet or Pontiac with a 10 or 12 bolt differential.

The GM 8640496 axle vent is made from high-quality materials to ensure durability and reliability. Its sturdy construction ensures that it can withstand the rigors of daily driving and endure the test of time. This vent is also easy to install, making it a convenient solution for maintaining the optimal performance of your differential assembly.

In summary, the GM 8640496 axle vent is an essential part of your 1953-79 Chevrolet or Pontiac's differential cooling system. It is a compact, durable, and easy-to-install component that allows air to enter the differential housing to cool the lubricating fluid and prevent overheating. By investing in this OEM part, you are ensuring the proper functioning and longevity of your differential assembly.

Buying a new-old-stock (NOS) GM 8640496 1953-79 Chevrolet Pontiac axle vent 10 12-bolt differential can be an appealing option for classic car enthusiasts who want to restore or maintain their vintage vehicles. Here are some potential pros and cons to consider before making a purchase.

1. Authenticity: NOS parts are original and have not been previously used or rebuilt, ensuring the highest level of authenticity for your restoration project.

2. Quality: NOS parts are often in excellent condition due to their sealed storage and lack of exposure to the elements and wear and tear from use.

3. Availability: NOS parts can be more readily available than used or rebuilt parts, especially for hard-to-find items, as they are often stored by specialized suppliers and distributors.

4. Performance: NOS differentials may perform better than rebuilt or used ones due to their original components and manufacturing specifications.

1. Cost: NOS parts can be more expensive than rebuilt or used parts due to their scarcity and the cost of storage and distribution.

2. Availability: While NOS parts can be more readily available than used or rebuilt parts for some items, they may be harder to find for others, especially for less common models or specific components.

3. Compatibility: NOS parts may require additional modifications or adjustments to fit correctly in your vehicle, depending on the condition and age of the car.

4. Shipping and Handling: NOS parts can be heavy and bulky, which can add to the cost of shipping and handling.

The decision to buy a new-old-stock GM 8640496 1953-79 Chevrolet Pontiac axle vent 10 12-bolt differential depends on your individual circumstances and priorities. If authenticity, quality, and performance are your top priorities, then the added cost and potential compatibility issues may be worth it for you. However, if you are working on a tight budget or are unsure about the compatibility of the part with your vehicle, then a rebuilt or used differential may be a more practical option. Ultimately, it's important to weigh the pros and cons carefully and consult with a knowledgeable professional if you have any doubts.

Details:

Bag is not included. One nos GM Original vent.

part #: 8640496 prices

• $9.99-$19.99

specifications othellodrivetrain:

• for makes: Chevrolet, Pontiac
• for years: 1953-79-2012
• brand: Gm
• mpn: 8640496
• part type: Axle Vent Bolt
• manufacturer warranty: No
• country of manufacture: United States
• surface finish: Plastic
• vintage part: Yes
• placement on vehicle: Rear

returns othellodrivetrain:

• policy: No Returns

shipping othellodrivetrain:

• type: Calculated
• service: USPS Ground Advantage
• transit: 4-8 Days
• class: Standard
• cost: $0.00
• carrier: USPS

offer othellodrivetrain:

• sold: 0
• availability: In Stock
• options: Ship-to-home
• quantity: 2
• started: February 16, 2026

seller othellodrivetrain:

• city: South Elgin, Illinois
• rating: 100.0%
• # reviews: 812

payments othellodrivetrain:

• credit card: Discover
• other
• wallet: Apple-pay

general othellodrivetrain:

• Car Truck Parts Accessories > Transmission Drivetrain > Other Transmission Drivetrain
• condition: New

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