PONTIAC 435-01220 Rear Trans Am Axle Differential 4.9L 3.08

( Model: TRANS-AM ), ( Part Type: Tran Axle ), ( Conditions Options: At, Turbo ), ( Genuine Oem: Yes ), ( Ipn: 435-01220 ), ( Descriptionpartcondition: Disc Rear Brake Option. Must Ship To Business/commercial Address ), ( Manufacturer Warranty: Unspecified Length ), ( Placement On Vehicle: Rear )

Review PONTIAC Trans am 4.9l Rear Axle Differential 3.08 Ratio fits FIREBIRD TURBO 1981

The Pontiac 435-01220 1981 Firebird Trans-Am 4.9L Turbo Rear Axle Differential 3.08 is a high-performance component designed specifically for the 1981 Pontiac Firebird Trans-Am with the 4.9L Turbo engine. This differential assembly is engineered to handle the increased torque and power generated by the turbocharged engine.

The unit features a 3.08:1 gear ratio, which provides a good balance between acceleration and top-end speed. The gearing is ideal for those who enjoy a responsive driving experience, as it allows for impressive acceleration while still maintaining reasonable highway cruising speeds.

Constructed from durable materials, this differential is built to withstand the rigors of high-performance driving. The housing is made from strong, lightweight cast iron, which ensures both strength and rigidity. The differential gears are precision-machined from heat-treated steel to ensure long-lasting durability and optimal performance.

The differential housing is also designed with a cooler location to help dissipate heat generated during high-performance driving. This cooler location allows for the installation of an aftermarket differential cooler, further enhancing the performance and longevity of the differential.

This differential assembly is also designed to be compatible with the Factory Performance 4.11:1 and 3.73:1 gears, allowing for flexibility in gear selection based on your driving preferences. The differential comes with a new pinion seal, new ring gear oil seal, and new differential cover gasket to ensure a proper seal and prevent leaks.

Installing this differential in your 1981 Firebird Trans-Am 4.9L Turbo is a straightforward process, making it an excellent upgrade for those seeking improved performance from their classic muscle car. With its robust construction, optimal gear ratio, and compatibility with various gearing options, this differential is a must-have for any serious Trans-Am enthusiast.

The Pontiac 435-01220 1981 Firebird Trans-Am 4.9L Turbo Rear Axle Differential 3.08 is a high-performance differential component for the classic Trans-Am muscle car. This part is known for its capability to handle high torque and power output, making it an attractive option for enthusiasts looking to upgrade their vehicles. However, like any automotive component, it comes with its own set of pros and cons.

1. Enhanced Performance: The 3.08 rear axle ratio in this differential is ideal for high-performance applications. It provides better acceleration and faster top speeds.

2. Durability: The Turbo 400 rear axle is known for its robustness and ability to handle high power levels. This differential is a popular choice among muscle car enthusiasts who demand reliable performance.

3. Customizability: With its aftermarket availability, this differential can be easily upgraded or customized to meet the specific needs of the vehicle and the driver.

1. Cost: This is a high-performance aftermarket part, which means it comes with a premium price tag. It may be more expensive than stock differentials or even some other aftermarket options.

2. Complexity: Installing this differential requires a good understanding of automotive mechanics and experience working with high-performance components. A professional installation is highly recommended.

3. Weight: The Turbo 400 differential is heavier than stock differentials, which can affect handling and fuel efficiency. This may not be a significant concern for those primarily focused on performance, but it's worth noting.

The Pontiac 435-01220 1981 Firebird Trans-Am 4.9L Turbo Rear Axle Differential 3.08 is a high-quality, high-performance component that can significantly enhance the capabilities of a Firebird Trans-Am. Its durability, customizability, and performance benefits make it a popular choice among enthusiasts. However, its cost, complexity, and weight are important factors to consider before making a purchase.

If you're a Firebird Trans-Am enthusiast looking for improved performance and are willing to invest in a high-quality aftermarket component, the Pontiac 435-01220 1981 Firebird Trans-Am 4.9L Turbo Rear Axle Differential 3.08 is an excellent option to consider. However, it's essential to ensure you have the necessary knowledge, tools, and experience to install it properly, or consult a professional to do the job for you.

Details:

No expedited shipping is available. Donor Vehicle model: TRANS-AM Year: 1981 Mileage: not available or unknown Stock Number: AD1623 Notes: 3.08 RATIO,4.9T,AT,TURBO DISC REAR BRAKE OPTION. FIREBIRD 79-81 disc rear brakes.

specifications othellodrivetrain:

• for models: Turbo, Firebird
• for makes: Pontiac
• for years: 1981
• model: Trans-am
• part type: Tran Axle
• conditions options: At, Turbo
• genuine oem: Yes
• ipn: 435-01220
• descriptionpartcondition: Disc Rear Brake Option. Must Ship To Business/commercial Address
• manufacturer warranty: Unspecified Length
• placement on vehicle: Rear

payments othellodrivetrain:

• credit card: Mastercard
• other
• wallet: Paypal

returns othellodrivetrain:

• time: 30 Days
• policy: Returns Accepted
• paid by: Buyer

seller othellodrivetrain:

• rating: 99.9%
• city: Richland, Mississippi
• # reviews: 56967

general othellodrivetrain:

• Car Truck Parts Accessories > Transmission Drivetrain > Axle Housings Parts
• condition: Used

offer othellodrivetrain:

• quantity: 1
• availability: In Stock
• best offers: True
• started: March 12, 2026
• options: Ship-to-home
• sold: 0

shipping othellodrivetrain:

• service: Flat Rate Freight
• cost: $450.00
• type: Fixed
• class: Freight

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