435-01961D FORD Rear Axle Base Ring Gear Mustang

Review FORD Rear Axle Base 7.5 Inch Ring Gear 3.27 Ratio Fits for MUSTANG 1999–2004

The Ford 435-01961D rear axle base is specifically designed for use with the 7.5 ring gear and 3.27 gear ratio in select Ford Mustang models from 1999 to 2004. This axle base is part number 30587457 in Ford's inventory.

This axle base provides the foundation for the entire rear axle assembly in your Mustang. It is manufactured with precision engineering to ensure a perfect fit and optimal performance. The high-strength steel construction of the Ford 435-01961D axle base offers superior durability, capable of withstanding the rigors of daily driving and high-performance applications.

The 7.5 ring gear, which interfaces with the axle base, is an essential component of the rear axle assembly. It is responsible for transmitting the engine's power to the driveshaft, ultimately propelling your Mustang forward. With a tooth count of 7.5, this ring gear provides a strong connection between the axle and the engine while working in conjunction with the 3.27 gear ratio to deliver smooth and efficient power transfer.

The combination of the Ford 435-01961D rear axle base and the 7.5 ring gear with 3.27 gear ratio offers excellent balance between acceleration and cruising performance for your Mustang. If you're looking to upgrade your vehicle's powertrain, this axle base is an essential component to consider.

When it comes to maintenance or repair, having access to an authentic OEM (Original Equipment Manufacturer) part like the Ford 435-01961D rear axle base ensures that the replacement part is of the same quality and durability as the one that came with your Mustang from the factory. With this part, you can trust that your vehicle's performance will remain consistent, and you'll have peace of mind knowing that you're using a part designed specifically for your vehicle.

In summary, the Ford 435-01961D rear axle base with the 7.5 ring gear and 3.27 gear ratio is a crucial component for the powertrain system of your 1999-2004 Ford Mustang. This part offers superior strength, durability, and performance, ensuring that your vehicle runs smoothly and efficiently.

The Ford 435-01961D rear axle base with a 7.5 ring gear and a 3.27 ratio is a popular option for those looking to upgrade their Mustang's rear end for better performance or durability. Here are some pros and cons of purchasing this particular rear axle:

1. Increased Performance: The 3.27 ratio provides better acceleration and improves overall performance. This makes it an ideal choice for those who want to modify their Mustang for racing or high-performance driving.

2. Improved Durability: The heavy-duty 7.5 ring gear provides increased strength and durability to the rear axle. This is important for those who plan on towing heavy loads or driving in challenging conditions.

3. Wide Availability: This rear axle is widely available and can be purchased from various automotive parts stores or online retailers. This makes it convenient for those who need to replace their rear axle quickly.

1. Expense: This rear axle assembly can be quite expensive, especially when compared to the stock rear axle. The cost may be a deterrent for some buyers, especially if they are on a tight budget.

2. Complex Installation: Installing this rear axle assembly can be a complex process and may require the help of a professional mechanic. This can add to the overall cost of the upgrade.

3. Compatibility: This rear axle assembly is specifically designed for certain Mustang models between 1999 and 2004. It may not be compatible with other Mustang models or years, so buyers need to ensure they purchase the correct part for their vehicle.

The Ford 435-01961D rear axle base with a 7.5 ring gear and a 3.27 ratio offers improved performance and durability for Mustang owners. However, it comes with a high price tag and a complex installation process. If you are planning on towing heavy loads, racing, or simply want to upgrade your Mustang's rear end for better performance, this rear axle assembly may be worth the investment.

Before making a purchase, make sure to check the compatibility of this rear axle assembly with your Mustang model and year. Additionally, consider the cost of the installation and the overall cost of the upgrade to determine if it is a worthwhile investment for your specific needs and budget.

Details:

Warranty does not include shift motor, switches, sensors, or seals. Contact b r immediately prior to removing or repairing any components. No hardware, accessories. Brakes, seals, sensors, and lines should be inspected replaced as needed.

Radiators must be flow tested or replaced receipts required. Fill with fluid according to manufacturers recommended type and level. Transfer case. Mustang 03-04 base, 7.5 ring gear, 3.27 ratio, w/o abs.

Each unit is carefully inspected before removal to ensure quality and functionality. Engine oil pans must be re-sealed. We remove oil pans to inspect automatic transmissions. Check with the dealer as components may be different.

Inspect and replace seals gaskets as needed. Torque converter must be properly seated and aligned to the front pump. Small parcel shipping ups/FedEx: free shipping on all small parcel orders. Residential delivery is not included in the free shipping or our regional charges.

This is a good used rear axle assembly, sold complete from backing plate. Cooling lines must be flushed of debris before installing. No labor or any other charges related to the sale installation of this product are warranted. Timing belts, thermostat, water pump and other maintenance items must be replaced.

Confirm proper gear ratio prior to installation. Must be installed and inspected by a factory trained certified technician. Inspect and replace as needed. Purchaser must replace seals, gaskets, and filter before installation re-seal the oil pan.

B r automotive does not guarantee mileage. If heat tabs are melted or removed, warranty void.

specifications differentialsdepo:

• for models: Mustang
• for years: 1999–2004
• brand: Ford
• part type: Ring Axle Gear
• conditions options: 3.8, 5mt
• genuine oem: Yes
• ipn: 435-01961d
• year: 2002
• partout id: A-100154279

shipping differentialsdepo:

• type: fixed
• class: freight
• service: flat rate freight

offer differentialsdepo:

• options: ship-to-home
• best offers: true
• sold #: 15
• prices: $835.99–$923.99
• item condition: Used
• in stock #: 2
• started: november 20, 2025
• availability: in stock

general differentialsdepo:

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

returns differentialsdepo:

• time: 60 days
• paid by: buyer
• policy: returns accepted

payments differentialsdepo:

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

seller differentialsdepo:

• # reviews: 65627
• rating: 97.1%
• city: central point, oregon