C9AZ-4204-B FORD Nos Differential Box Galaxie

Review FORD Nos Differential Case Assy Ltd 8.7 Inch Oem Box for GALAXIE 1969–1974

Ford C9Az-4204-B NOS Differential for 1969-1974 Galaxie and LTD 8.7 Inches

If you're on the hunt for an authentic and original replacement differential for your classic Ford Galaxie or LTD from the 1969 to 1974 period, look no further than our Ford C9Az-4204-B NOS (New Old Stock) differential. This is a genuine Ford part, which means that it has been manufactured by Ford during the production period and has remained unused until now.

This Ford C9Az-4204-B NOS differential features a robust 8.7 inches size, making it suitable for handling the power and torque demands of your classic Ford vehicle. The unit comes with a standard 28.5 spline shaft and is designed for use with a Ford 9-inch rear end housing.

The NOS differential is an excellent choice for those seeking to restore their classic Ford to its original state, or for those looking to upgrade their vehicle's performance with a genuine Ford part. The NOS status ensures that the differential is free from any signs of wear, corrosion, or damage, guaranteeing a perfect fit and reliable operation.

The 1969-1974 Ford Galaxie and LTD 8.7 inches differential is a crucial component of your vehicle's drivetrain, and a high-quality replacement can significantly impact your vehicle's performance, reliability, and value. With our Ford C9Az-4204-B NOS differential, you can enjoy peace of mind knowing that you've installed an authentic and original Ford part in your classic vehicle.

The NOS differential comes in its original packaging, ensuring that it remains protected during transportation and storage. Each package includes detailed instructions for installation, making the process as straightforward and hassle-free as possible.

In summary, our Ford C9Az-4204-B NOS differential is a must-have for any classic Ford Galaxie or LTD owner seeking a high-quality, authentic, and reliable replacement for their vehicle's original differential. With its 8.7 inches size, standard 28.5 spline shaft, and NOS status, this genuine Ford part is guaranteed to deliver optimal performance and a perfect fit.

The Ford C9 Az-4204-B NOS (New Old Stock) differential is a popular upgrade option for 1969-1974 Ford Galaxie Ltd cars with an 8.7 box. This differential offers some benefits, but it also comes with certain drawbacks. Here's a brief analysis of the pros and cons of buying this differential.

1. Improved Performance: The C9 Az-4204-B differential is known for its stronger gears and improved performance. It can handle more torque and power, making it a popular choice for those looking to upgrade their Galaxie's powertrain.

2. Durability: The NOS differential is in its original factory condition, which means it has not been used before. This makes it a more durable option compared to a used differential that may have been previously rebuilt or repaired.

3. Authenticity: For classic car enthusiasts, the NOS differential adds to the authenticity of their restoration project. It allows the car to be restored to its original specifications, which can increase its value.

1. Cost: The NOS differential is a more expensive option compared to a used differential. This is due to its scarcity and original condition.

2. Installation Complexity: Installing a new differential can be a complex process. It involves removing the old differential, preparing the car for the new one, and installing the new differential. This process requires specialized tools and knowledge.

3. Break-in Period: After installation, the new differential needs to be broken in properly to ensure optimal performance. This involves driving the car gently for the first few hundred miles.

The Ford C9 Az-4204-B NOS differential is an excellent upgrade option for those looking to improve the performance and durability of their 1969-1974 Ford Galaxie Ltd cars. However, it comes with a higher cost, installation complexity, and a break-in period. Ultimately, whether or not to purchase this differential depends on an individual's priorities, budget, and restoration goals. If performance and authenticity are top priorities, then the NOS differential may be a worthwhile investment. However, for those on a tighter budget or looking for a more cost-effective solution, a used differential may be a better option.

Details:

Applications confirmed Ford fitment: fits the following 1969 1974 full size mercury model's equipped with 8.7 integral carrier rear axle. Mercury marquis. Ford part number: c9az 4204 b: genuine differential case assembly for the 8.7 integral carrier rear axle.this is new old stock nos an original service part manufactured in era, never installed. Ford country squire.

Known axle id codes: wear f, g, h, j. Ford Galaxie 500. Mercury Monterey. May show light shelf wear from long term storage dust, minor discoloration, etc.

Integral carrier non removable third member. Genuineness Ford part. Ford custom 500. Axle details.

Ford country sedan.

specifications differentialsdepo:

• for models: Galaxie
• for years: 1969–1974
• brand: Ford
• mpn: C9az-4204-b
• type: Differential Gear Case
• fitment type: Direct Replacement

general differentialsdepo:

• category: Auto Parts > Transmission Drivetrain > Differentials > Assemblies

returns differentialsdepo:

• time: 30 days
• paid by: seller
• policy: returns accepted

shipping differentialsdepo:

• class: standard, expedited
• carrier: ups, usps
• transit: 3-8 days
• service: ups ground, usps ground advantage, usps priority mail
• type: calculated

offer differentialsdepo:

• started: april 8, 2026
• in stock #: 5
• availability: in stock
• best offers: true
• prices: $69.95–$149.00
• item condition:
  • New other (see details)
  • New
• sold #: 11
• options: ship-to-home

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• wallet: apple-pay
• other
• credit card: mastercard

seller differentialsdepo:

• city: piedmont, south carolina
• # reviews: 6102
• rating: 99.9%