What do differentials and parts consist of?

Differentials and parts are a set of drivetrain components mounted on the drive axle or in an AWD system. A typical set includes a housing, ring gear, pinion shaft, spider gears, side gears, bearings, and seals. Depending on the car's design, flanges, a speed sensor, and mounting elements are also included. Compatibility is primarily determined by the OEM number, gear ratio, and housing type.

What are differentials and parts used for?

Differentials are used to distribute torque to wheels on the same axle while maintaining a difference in their speed during a turn. This allows the drivetrain to operate smoothly, and tires and half-shafts are not excessively stressed in corners. A functional differential also affects traction, stability, and drivetrain performance. In AWD cars, it additionally cooperates with elements distributing power between axles.

What is the construction and function of differential bearings?

Differential bearings are rolling elements supporting the pinion shaft and the differential carrier. Their task is to maintain the alignment of the gear operation, reduce friction, and transfer loads generated during acceleration and engine braking. Worn bearings can cause whining, play, and an incorrect tooth contact pattern. When selecting, check the seat dimensions, bearing type, and compatibility with the given housing.

How to choose a differential for a specific car version?

It is safest to compare the OEM number, gear ratio designation, drive type, and body/engine version. It is also worth checking the flange diameter, shaft mounting method, presence of a sensor, and housing type. For 4x4 vehicles, compatibility with other drivetrain elements is also important.

What symptoms may indicate wear of the differential or its parts?

The most common symptoms are whining that increases with speed, vibrations during acceleration, clunking when changing loads, and oil leaks around the seals. In practice, it is also worth paying attention to excessive play on the flanges and uneven drivetrain operation in corners. Such signals do not always mean the entire unit is damaged, but they require verification of bearings, gears, and mounts.

How to take care of differentials after installation?

The basis is checking the level and quality of gear oil and regularly checking the housing for leaks. After installation, it is worth observing whether there is any noise, play, or weeping at the seals. It is also good practice to verify cooperating elements such as half-shafts, the drive shaft, and mounts so that the entire system operates without excessive loads.

Differentials and parts

At Global Parts, we offer a wide selection of genuine used car parts, including differentials and parts for many popular car brands, including BMW, Mini, Mercedes, Audi, Volkswagen, and others. Each differential and part we offer undergoes quality control to ensure you receive a top-quality product.

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Ford Transit MK6 Rear Axle Differential Diff RWD Ratio 3.77 4C114001GBA WARRANTY

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Audi Q5 8R 2.0 TDI Quattro Rear Axle Differential LLU 42:9 0BD500043K WARRANTY

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Audi RS4 B8 4.2 FSI CFSA Quattro Rear Differential 35:8 MKW 0BF500044 WARRANTY

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BMW F22 F23 F30 F31 F32 F36 Rear Differential Diff 3,23 Ratio 7599475 WARRANTY

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Mercedes W205 W213 4Matic Front Differential Diff 2,47 A2053303707 WARRANTY

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BMW E93 325i N53 Rear Differential Diff 3.64 Ratio 7566173 WARRANTY

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Audi A4 B8 S5 8T Rear Differential Servomotor Unit 0BF598074

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BMW F20 F21 F30 F31 F32 F34 Rear Differential Diff 3,15 Ratio 7603748 WARRANTY

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BMW E93 325i N53 Rear Differential Diff 7566165 3,15 Ratio Manual WARRANTY

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BMW G30 G31 530d B57 Rear Axle Differential Diff 2,47 Ratio 8632067 WARRANTY

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BMW F80 M3 F82 F83 M4 F87 M2 Rear Differential Diff 3,46 Ratio 8090473 WARRANTY

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BMW E93 Convertible 330d N57 Rear Differential Diff 2,93 Ratio 7572522 WARRANTY

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BMW F20 F21 125d N47S1 Rear Differential Diff 3,38 Ratio 7599413 Manual WARRANTY

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Audi Q5 FY 40 TDI Rear Differential Diff Ratio 53:10 TJR 0B0500043N WARRANTY

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BMW E60 E61 LCI 535d M57N2 Rear Differential Diff 7570474 2,65 Ratio WARRANTY

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Audi Q3 8U 2.0 TDI Quattro DSG Transfer Box Case 0CP409053A WARRANTY

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Mercedes W221 Rear Diff Differential Axle A2213500702 Ratio 2,47 WARRANTY

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BMW F25 F26 F30 F31 F32 xDrive Front Differential Diff 3,38 7578153 WARRANTY

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