BMW F01 F10 F12 F13 550i 650i 740d Rear Differential 3.08 Ratio 7630832 WARRANTY

Listing details

The differential is sold with a 90-day warranty! It was tested before removal and is in full working order.

BMW F01 F10 F12 F13 550i 650i 740d Rear Differential 3.08 Ratio is an original drivetrain component from the Differentials category, designed for installation on the rear axle of selected high-end BMW models. Its stable gear ratio, robust construction, and factory-spec fitment make it a particularly advantageous solution for drivetrain repairs, replacing a worn-out axle, or restoring the vehicle's original driving performance.

Specifications and technical data

• SKU: 7630832
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7630832
• Substitutable numbers: 7630832, 33107630832, 7630833, 33107630833
• Location on the vehicle: Rear
• Category: Differentials

Purpose and function in the drivetrain

The presented rear differential is dedicated to high-power BMW F-series vehicles, such as the 550i, 650i, or 750i, where precise torque transfer to the rear axle is crucial. It is responsible for distributing power to the rear wheels, ensuring smooth cornering and predictable vehicle behavior during acceleration and engine braking.

Thanks to the factory 3.08 gear ratio, the differential supports a balanced combination of dynamics and driving comfort, which is particularly important in heavier BMW sedans and coupes. This type of configuration promotes a calm yet decisive acceleration characteristic without excessively high engine RPMs at highway speeds.

Construction, installation, and fitment

The rear differential is designed as a component mounted in the rear of the vehicle, within the drive axle, maintaining factory mounting points and geometry. This means that when correctly matched to a specific engine and drivetrain version of the BMW F01, F10, F12, or F13, the installation is essentially plug-and-play, without the need for modifications to the body or subframe structure.

Its original BMW origin guarantees a proper fit with the half-shafts, driveshaft, and rear suspension components. This translates to reduced vibrations, correct interaction with the vehicle's electronics, and the preservation of factory drivetrain performance parameters. In practice, this facilitates both maintenance and the subsequent diagnosis of any potential faults.

Performance characteristics and application

The 3.08 ratio differential performs well in high-power cars where a combination of traction stability and long-distance driving comfort is essential. This configuration:

• promotes smoother engine operation at higher speeds,
• reduces noise and fuel consumption compared to shorter gear ratios,
• ensures predictable rear axle behavior during dynamic maneuvers.

This component will be the right choice when replacing a worn or damaged drive axle, as well as when restoring factory settings after previous gear ratio modifications. The factory gear configuration also facilitates compliance with the vehicle's control software and driver assistance systems.

Condition, origin, and benefits of choosing a used differential

The offered differential is a used part, sourced from vehicle dismantling, which allows for a significant reduction in repair costs compared to purchasing a new part, while maintaining original BMW specifications. Choosing such a solution is beneficial both economically and from the perspective of reducing one's environmental footprint – reusing functional components aligns with modern automotive recycling approaches.

If you want to better understand how to choose a drive axle ratio for your driving style and what the practical differences are between various differential configurations, it is worth reading the article: Dismantled drive axles and differentials – how to choose gear ratios for your driving style. You will find specific examples, definitions, and answers to frequently asked questions there.

Additionally, if you are interested in the ecological and economic aspects of using dismantled parts, the following material will be helpful: Eco-driving: discover the benefits of used car parts, which describes how conscious choices regarding used components affect operating costs and the environment.

Expanding the BMW drivetrain – selecting other differentials

If you are planning a comprehensive repair or upgrade of your BMW's drivetrain and need other components from the same group, such as additional drive axles, alternative differentials with different ratios, or compatible housings, check the available parts in the BMW Differentials category.

Summary

BMW F01 F10 F12 F13 550i 650i 740d Rear Differential 3.08 Ratio is an original, used rear drivetrain component designed for demanding premium-class BMW models. Its factory gear ratio, fitment to the rear axle structure, and compatibility with other drivetrain components make it a practical solution for repairs, replacements, and restoring factory driving parameters. By choosing this differential, you gain a technically matched component that supports stable handling and comfortable vehicle operation.