What is the construction and purpose of differentials?

Differentials are drivetrain components mounted on the drive axle or in the axle housing. They usually consist of a housing, final drive, spider gears, side gears, bearings, and seals. Their task is to distribute torque between the wheels of one axle and allow for a difference in rotational speed while turning.

What are differentials used for?

Differentials are used for smooth power transfer to the wheels while maintaining car stability in corners. Thanks to them, the inner and outer wheels of the drive axle can rotate at different speeds without jerking the drivetrain. Failure of this assembly can cause noise, overload the half-shafts, and impair vehicle handling.

What is the construction and function of differential bearings?

Differential bearing is a system of bearings supporting the pinion shaft and the differential carrier. It serves to maintain the proper position of gear elements, limit backlash, and ensure uniform gear operation. Its condition affects noise levels, gear durability, and the tightness of the entire assembly.

How to choose a differential for a specific car version?

When choosing, it is best to compare the OEM part number, interchangeable numbers, gear ratio, and vehicle placement. It is also worth checking the fuel type, body version, drive type, and compatibility with half-shafts and the driveshaft. If the car was available in several equipment variants, verification by VIN will also be helpful.

What symptoms may indicate differential wear?

Most commonly, these are whining or humming sounds that increase with speed, jerking when changing loads, and noticeable play in the drivetrain. Symptoms also include oil leaks from the housing and uneven operation during turns. Such signals should be compared with the condition of bearings, seals, and mounts.

What does the installation and maintenance of a differential look like?

Installation involves removing the driveshaft, disconnecting the half-shafts, replacing the assembly, and resetting all connections according to the manufacturer's documentation. After installation, check for leaks, mount condition, and the correct oil specified for the given design. In operation, regular checks for leaks, noise, and play appearing during driving are important.

Differentials - Differentials

Our offer includes original used differentials, commonly known as differentials, as well as remanufactured differentials from brands such as BMW, Mercedes, Audi, Volkswagen, Mini, and others. Thanks to our collaboration with experienced automotive consultants with over 10 years of experience, we can help you choose the right differential for your vehicle.

More information

Make

Audi A8 D4 4.2 TDI Quattro Rear Axle Differential Diff MXX 0BE500043C WARRANTY

£1,614.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. A9063503704

Mercedes Sprinter W906 Rear Differential Diff A9063503704 741423 51:13 3,923

£1,424.95

Delivery: Jul 01

If paid before 14:00

Part no. 08E525010AB

Audi S3 8Y 2.0 TFSI DNFF Quattro Rear Axle Differential VPW 08E525010AB WARRANTY

£1,377.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. A2043504714

Mercedes W204 W212 M156 Rear Axle Differential 2.82 Ratio A2043503314 WARRANTY

£1,377.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 2283320

BMW E90 E92 E93 M3 S65 Rear Differential Diff 3,15 Ratio 2283320 WARRANTY

£1,377.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 8090464

BMW F80 M3 F82 F83 M4 F87 M2 Rear Differential Diff 3,46 Ratio 2289970 WARRANTY

£1,377.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 5247045

Ford Ranger Mk6 2.2 TDCi 4x4 I=3.55 Rear Axle Differential AB39-4010-CE WARRANTY

£1,234.95

Delivery: Jul 01

If paid before 14:00

Part no. LR003138

Land Rover Freelander 2 Rear Axle Differential Diff P31256170 WARRANTY

£1,234.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 0BF500044

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

£1,187.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 0BS525010B

Volkswagen Passat CC 3.6 FSI 4Motion Rear Differential Diff 0BS525010B WARRANTY

£1,139.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. A2463501802-1

Mercedes W176 W246 4Matic Rear Axle Differential Diff 2,438 A2463507701 WARRANTY

£1,139.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 0CQ525010J

Audi S3 8V 2.0 TFSI Quattro Rear Axle Differential RUU 0CQ525010J WARRANTY

£1,139.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. A2573506400

Mercedes W213 C238 C257 AMG Rear Differential Diff A2573506400 3,06 WARRANTY

£1,139.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 2HJ409023H

Volkswagen Amarok Mk2 3.0 TDI Front Axle Differential I=3.55 2HJ409023H WARRANTY

£1,092.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 0CQ525010K

Audi A3 S3 8V 2.0 TFSI Quattro Rear Axle Differential RUR 0CQ525010K WARRANTY

£1,044.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 0CQ525015

Audi A3 S3 8V 2.0 TFSI Quattro Rear Axle Differential Diff 0CQ525010F WARRANTY

£1,044.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. LR161861

Range Rover Sport L494 3.0 MHEV Rear Axle Differential HPLA-4A213-CB WARRANTY

£1,025.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. A9063506201

Mercedes Sprinter W906 Rear Differential Diff A9063506201 741415 51:13 3,923

£949.95

Delivery: Jul 01

If paid before 14:00

Part no. A9033500403

Mercedes Sprinter W901 Rear Differential Diff A9013503900 741407 35:8 4,375

£949.95

Delivery: Jul 01

If paid before 14:00

Part no. A4703501600

Mercedes X250d W470 OM699 Rear Axle Differential Diff A4703501600 WARRANTY

£902.95

Delivery: Jul 01

If paid before 14:00

Part no. 0BR525010J

Audi S1 8X 2.0 TFSI CWZA Quattro Rear Axle Differential PQX 0BR525010J WARRANTY

£902.95

Free delivery: Jul 02

If paid before 14:00

Part no. A9013503600

Mercedes Sprinter W901 Rear Differential 38:11 3,454 A9013503900 741407 WARRANTY

£902.95

Delivery: Jul 01

If paid before 14:00

Part no. GK31-4001-AAD

Ford Transit Mk8 Rear Axle Differential Diff 2.0 Diesel WARRANTY GK31-4001-AAD

£854.95

Delivery: Jul 01

If paid before 14:00

Part no. A9063506701

Mercedes Sprinter W906 Rear Axle Differential Diff A9063506701 WARRANTY

£826.95

Delivery: Jul 01

If paid before 14:00

Part no. 2701509

Ford Transit Mk8 2.0D Rear Axle Differential Diff RWD GK31-4001-FAH WARRANTY

£759.95

Delivery: Jul 01

If paid before 14:00

Part no. 2694074

Ford Transit Mk8 Rear Axle Differential Diff RWD I=4.10 GK31-4001-FAH WARRANTY

Product currently unavailable

Part no. A2133501201

Mercedes W205 W213 300de Rear Axle Differential 1:2.642 2133501201 WARRANTY

£759.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. LR031377

Range Rover Evoque L538 2.2 TDCI Rear Differential Diff BH52-4200-AD WARRANTY

£712.95

Free delivery: Jul 02

If paid before 14:00

Part no. 95834901120

Porsche Cayenne 92A 3.0 TDI Front Axle Differential MUN 95834901120 WARRANTY

£712.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 0BM409505T

Volkswagen Touareg 7P Front Axle Diferential Diff 0BM409505T WARRANTY

£707.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. A6393501414

Mercedes Vito W639 Rear Differential Diff Axle 3,273 Ratio A6393501414 WARRANTY

£683.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. A6393502714

Mercedes Vito W639 Rear Differential Diff Axle 3,455 Ratio A6393502714 WARRANTY

£664.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 7560599-1

BMW E60 E61 525i N52 Rear Differential Diff 3,38 Ratio 7528326 RECONDITIONED

£664.95

Free delivery: Jul 02

If paid before 14:00

Part no. 7591998

BMW X3 F25 X4 F26 F07 F10 F11 F20 F21 F34 Front Differential Diff 3,08 WARRANTY

£664.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 0AY525010N

Audi Q3 2.0 TDI Quattro Rear Axle Differential Diff 0AY525010N WARRANTY

£664.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 0BM409505L

Volkswagen Touareg 7P Front Axle Diferential Diff AGT 0BM409505L WARRANTY

£664.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. A2113505462

Mercedes W211 M271 Rear Axle Differential Diff A2113510308 WARRANTY

£664.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 95534901040

Porsche Cayenne 955 9PA Front Axle Differential Diff I=3,9 95534901040 WARRANTY

£636.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 7524319-1

BMW E87 E90 Rear Differential Diff 3,38 Ratio 7524319 RECONDITIONED

£617.95

Free delivery: Jul 02

If paid before 14:00

Part no. 0B0500043N

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

£617.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 0AY525010F

Audi Q3 8U 2.0TFSI Quattro Rear Axle Differential Haldex PGA 0AY525010F WARRANTY

£617.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 2392788

Ford Transit Mk8 Rear Axle Differential Diff 3.15 Ratio BK31-4001-AAH WARRANTY

£617.95

Delivery: Jul 01

If paid before 14:00

Part no. 7524317-1

BMW 1 3 Series E87 E90 118i 318i N46 Differential Diff 3,23 Ratio RECONDITIONED

£617.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 7524323-1

BMW E87 LCI 120i N43 Rear Differential Diff 3,73 Ratio 7524323 RECONDITIONED

£617.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 8655015

BMW X3 G01 X4 G02 20iX Rear Axle Differential Diff I = 3.38 8655015 WARRANTY

£617.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 7524325-1

BMW E87 E90 E91 116i 118i 318i 320i Differential Diff 3,91 Ratio RECONDITIONED

£588.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 09R500043B

Audi A6 C8 3.0 TFSI Rear Axle Differential Diff I=44:10 RPZ 09R500043B WARRANTY

£588.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 7531797

BMW X3 Series E83 2.0i N46 Front Differential Diff 4,10 Ratio 7531797 WARRANTY

£569.95

Free delivery: Jul 02

If paid before 14:00

Part no. 0BN525017B

Porsche Cayenne 92A 4.8 V8 Rear Axle Differential Diff AGT 0BN525017B WARRANTY

£569.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 7590912

BMW X5 E70 30dX 35iX Rear Differential Diff 3,15 Ratio 7590911 7630912 WARRANTY

£569.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 0G2500043E

Audi A6 C8 A7 4K 3.0 TDI Rear Differential Diff 43:13 UEH 0G2500043E WARRANTY

£569.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 7599397

BMW X1 E84 20iX 28iX N20 Rear Axle Differential Diff 3,38 7599396 WARRANTY

£569.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. A1663504214

Mercedes ML W166 4Matic Rear Axle Differential Diff I=3.27 A1663504214 WARRANTY

£560.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. A4473500814

Mercedes W447 119 CDI Rear Axle Differential Diff I=2,93 A4473500814 WARRANTY

£522.95

Free delivery: Jul 02

If paid before 14:00

Part no. 7578150-1

BMW F10 F11 Rear Differential Diff 3,38 Ratio 4598071 7578149 WARRANTY

£522.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 0BR525010E

Audi S1 8X 2.0 TFSI CWZA Quattro Rear Axle Differential PFZ 0BR525010E WARRANTY

£503.95

Free delivery: Jul 02

If paid before 14:00

Part no. 8881536

BMW F70 F74 F78 M235iX B48R Rear Axle Differential Diff 8881536 WARRANTY

£484.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 0AV525010K

Audi S3 8P VW Golf Mk5 R32 3.2 V6 Rear Axle Differential 0AV525010K WARRANTY

£474.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. A9063502501

Mercedes Sprinter W906 Rear Differential Diff 741423 48:11 4,364 A9063502501

£474.95

Delivery: Jul 01

If paid before 14:00

Part no. 1722799

Ford Transit MK7 Rear Axle Differential Diff RWD I=3,58 8C16-4001-ADA WARRANTY

£474.95

Delivery: Jul 01

If paid before 14:00

Part no. 6C11-4001-AEF

Ford Transit MK7 2.4 TDCI Rear Axle Differential Diff RWD 6C11-4001-AEF WARRANTY

£474.95

Delivery: Jul 01

If paid before 14:00

Part no. A9063506101

Mercedes Sprinter W906 Rear Differential Diff 741415 46:11 4,182 A9063506101

£474.95

Delivery: Jul 01

If paid before 14:00

Part no. 95835001111

Porsche Cayenne 92A 3.0 TDI Rear Axle Differential Diff RMZ 95835001111 WARRANTY

£474.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. LR055520

Land Rover Discovery 4 L319 Front Differential Diff 3.0 TDV6 LR055520 WARRANTY

£474.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. LR141943

Range Rover Sport L494 Front Differential Diff 3.31 DT306 MK62-3017-BA WARRANTY

£474.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. LR039508

Range Rover L405 4.4 Rear Axle Diferential Diff I=2.73 CPLA-4A213-AB WARRANTY

£474.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 7592987

BMW X1 E84 Rear Differential Diff Final Drive 3,91 Ratio 7592987 WARRANTY

£474.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 8679977

BMW X3 G01 X4 G02 Front Axle Differential Diff 2,81 Ratio 8679977 WARRANTY

£455.95

Free delivery: Jul 02

If paid before 14:00

Part no. A2053506718

Mercedes W205 W213 C253 Rear Axle Differential Diff A2053509527 3,066 WARRANTY

£446.95

Free delivery: Jul 02

If paid before 14:00

Part no. 7578153

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

£446.95

Free delivery: Jul 02

If paid before 14:00

Part no. 9896285

BMW G20 G30 G32 LCI xDrive Front Differential Diff 2,56 Ratio 9896285 WARRANTY

£446.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 7630832

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

£446.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 1628981

Ford Transit MK7 2.4L Duratorq Rear Axle Differential RWD 6C114001BCF WARRANTY

£441.95

Delivery: Jul 01

If paid before 14:00

Part no. 8487445

BMW X3 G01 X4 G02 X5 G04 X6 G06 Front Differential Diff 3.385 8487445 WARRANTY

£427.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 7592002

BMW X3 F25 X4 F26 Front Differential Diff 3,73 7592001 Manual Gearbox WARRANTY

£427.95

Free delivery: Jul 02

If paid before 14:00

Part no. 0D3500043

Audi S4 B9 S5 F5 SQ5 FY 3.0 Rear Axle Differential 43:13 QQS 0D3500043 WARRANTY

£427.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 7636996

BMW X5 F15 X6 F16 Rear Axle Differential Diff I=3,15 7636996 WARRANTY

£427.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 95B525015K

Porsche Macan S 95B Rear Axle Differential Diff 95B525015K WARRANTY

£427.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 95533201020

Porsche Cayenne 9PA 3.2 Rear Axle Differential Diff I=4,56 95533201020 WARRANTY

£427.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. A6393501814

Mercedes W639 Rear Axle Differential Diff 2,923 Ratio A6393501814 WARRANTY

£422.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 521004H110

Hyundai H-1 2.5 CRDi Rear Axle Differential Diff 521004H110 WARRANTY

£417.95

Delivery: Jul 01

If paid before 14:00

Part no. TBB000070

Range Rover L405 4.4 V8 Rear Axle Differential Diff I=3.73 7501405 WARRANTY

Product currently unavailable

Part no. A2053501500

Mercedes W205 W213 C238 Rear Axle Differential Diff A2053501500 2,824 WARRANTY

£408.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 7560592

BMW 5 Series E60 E61 Rear Differential Diff 3,23 Ratio 7560591 7556672 WARRANTY

£398.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 7566171

BMW E90 E91 E92 325i N53 Rear Differential Diff 3,07 7566171 Manual WARRANTY

£398.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. LR010798

Range Rover L322 3.6 V8 368DT Front Axle Differential Diff AH42-3017-AA WARRANTY

£379.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. LR117564

Range Rover Evoque L551 2.0 Rear Axle Differential Diff K8D2-4N053-AE WARRANTY

£379.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. LR039594

Range Rover Vogue L405 4.4D Front Axle Differential 2.73 CPLA-3017-AD WARRANTY

£379.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 0D3500043-1

Audi S4 B9 S5 F5 3.0 Rear Axle Differential Diff 43:13 QQS 0D3500043 WARRANTY

£379.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 0BR525010

Audi TTS 8J 2.0 TFSI CDLB Quattro Rear Axle Differential KMC 0BR525010 WARRANTY

£379.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. A2053506718-1

Mercedes W205 W213 C253 Rear Axle Differential Diff A2053509527 3,066 WARRANTY

£379.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 7592010

BMW X3 F25 X4 F26 Rear Differential Diff Axle 3,73 Ratio 7592009 Manual WARRANTY

£379.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. TVK000180

Land Rover Freelander L314 2.0 TD4 Rear Differential Diff TVK000180 WARRANTY

£360.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 38420CA000

Nissan X-Trail 3.2 V6 4x4 Rear Axle Differential Diff 38420CA000 WARRANTY

£355.95

Free delivery: Jul 02

If paid before 14:00

Part no. 95B525015M

Porsche Macan S 95B Rear Axle Differential Diff 95B525015M WARRANTY

£355.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. A2053501600

Mercedes W205 W213 Rear Axle Differential Diff A2053507514 3,06 WARRANTY

£332.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. A2053503324

Mercedes W205 C43 AMG 4matic Rear Differential M276 Auto A2053503324 WARRANTY

£332.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. A1723509003

Mercedes SLK R172 Rear Axle Differential Diff 3,066 Ratio 1723505703 WARRANTY

£332.95

Free delivery: Jul 3 – 10

If paid before 14:00

Part no. 0AR500043A

Audi A6 C6 4F 3.0 TDI Quattro Rear Axle Differential HNL 0AR500043A WARRANTY

£332.95

Free delivery: Jul 3 – 10

If paid before 14:00

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Car differentials for precise power distribution

Precision differentials for optimal drive distribution

Have you ever wondered what makes your car corner smoothly and handle road bumps effectively? This is due to the differential – a key component of your car's drivetrain. Without this differential gear, traveling would be significantly less comfortable and safe. A functional differential ensures that each wheel rotates at the appropriate speed, adjusted to road conditions and maneuvers performed by the driver. A malfunctioning or damaged differential can lead to many problems – from difficulty in steering to serious failures of other drivetrain parts. Symptoms of a faulty differential may include noise coming from the axle area, difficulty when turning, and uneven tire wear, which is why it is worth paying attention to regular technical inspections of your car and taking care of the condition of all its components. In our Global Parts automotive store with spare parts, you will find a wide selection of high-quality used differentials that are not only durable but also available at attractive prices. You can easily order them online and add selected car differentials to your cart. Taking care of the good condition of the differential is an investment in the comfort and safety of every journey, as well as the longevity of other components of your vehicle. Regular maintenance of this mechanism guarantees smooth driving regardless of road conditions or the type of equipment used. A car differential is a mechanism whose main task is to distribute torque between the wheels of the drive axle, allowing them to rotate at different speeds in corners. In passenger vehicles, open differentials, LSD (Limited Slip Differential), and electronic E-Diffs are most commonly used. For example, a BMW X3 E83 differential ensures precise torque transfer to the rear wheels, which improves traction on slippery surfaces. In practice, a typical rear differential for a BMW E46 318i has a gear ratio of 3.91:1 and a weight of approximately 35 kg, which allows it to work effectively with the driveshaft and half-shafts. Compatibility of differentials with a specific VIN guarantees full interchangeability and fitment with the rest of the drivetrain. This saves installation costs and minimizes the risk of improper vehicle operation.

Construction and purpose of differentials

Differentials are drivetrain assemblies mounted on the drive axle or in the axle housing, designed to distribute torque between the left and right wheels. A typical unit consists of a housing, ring gear, pinion shaft, spider gears, bearings, and seals. In product listings, it is worth checking data such as the OEM part number, interchangeable numbers, vehicle placement, and fuel type, as these affect compatibility with a specific car version.

Comparison of car differential variants

Variant	Operating characteristics	Elements to check before purchase	Application
Open differential	Standardly distributes torque to the wheels and allows them to rotate at different speeds in a turn.	OEM number, gear ratio, mounting type, compatibility with half-shafts and driveshaft.	Most common in road cars.
LSD differential	Limits excessive wheel slip and improves power transfer in poor traction conditions.	Type of locking mechanism, gear ratio, housing, compatibility with the drive axle.	Sport versions, higher-performance variants, and dynamically used cars.
Electronic E-Diff	Works in conjunction with the vehicle's electronics and stability control system.	Control compatibility, equipment version, cooperating sensors, OEM number.	Modern drivetrains with advanced electronics.

Table of example BMW differentials

Model	Type	Ratio	Weight
BMW E46 318i	Rear differential	3.91:1	35
BMW X3 E83	Rear differential	3.91:1	38
BMW 320d E90	Rear differential	3.91:1	36

Differentials - Original spare parts from well-known automotive manufacturers

In our offer, you will find original used differentials, as well as differentials refurbished by our company for brands such as BMW, Mercedes, Audi, Ford, Volkswagen, or Mini. Thanks to our cooperation with experienced automotive advisors with over 10 years of experience, we will help you choose the right differential for your car. Our specialists provide professional advice and support at every stage of purchasing a differential. By using our services, you can be sure that you are choosing the best differentials available on the market. All our differentials are carefully selected and tested for durability and performance. This way, you can be sure that your vehicle will operate flawlessly for many years. Thanks to the wide assortment of products in the Global Parts automotive store, we offer differentials suitable for many passenger car models. We place great emphasis on the quality of our products and ensure that every customer finds something for themselves in our store. We stock differentials with various technical parameters and prices adapted to individual user needs. You can easily browse our offer online and add selected differentials to your cart without leaving your home. Reliable drivetrain operation is crucial for driving safety and travel comfort. That is why it is worth investing in original used parts from renowned manufacturers and distributors such as Global Parts. Thanks to them, your car will always be ready for any route – regardless of road conditions or surface type. If you are not sure which differential best fits your car or have questions regarding installation – our experts are always ready to help. Simply contact us by phone or email; we will be happy to provide all information and advise you on choosing the right spare parts. Investing in original components from proven manufacturers is a guarantee of reliability and longevity for your vehicle. By taking care of your car's condition through regular replacement of worn parts, you will ensure a smooth ride without unexpected breakdowns or technical problems. In addition to standard differentials, our offer also includes BMW LSD limited-slip differentials, which increase traction on surfaces with varying friction coefficients. Thanks to OEM numbers, you can precisely match the differential to the specific model and year of the car.

The importance of gear ratios and cooperating elements

The differential gear ratio is used to match the drivetrain characteristics to the engine, gearbox, and wheel diameter. It influences how torque is delivered, the car's acceleration response, and RPMs while driving at a constant speed. When choosing, it is worth comparing not only the OEM number but also the housing, mounting points, and compatibility with differential bearings and seals.

Choosing a differential for the car version and drive type

The differential is designed to work with the driveshaft, half-shafts, and hubs, so its selection should take into account the engine version, fuel type, and mounting location. For parts such as a BMW E90 320i differential, you must compare the gear ratio, OEM number, and rear housing mounting method to avoid fitment issues. Additionally, it is helpful to compare the offer with differential repair kits and other differential parts if a more extensive repair is planned.

Practical tips for replacement and condition assessment

Differential bearing is the support system for the pinion shaft and the differential carrier, which is responsible for the smooth and quiet operation of the entire assembly. Worn bearings, backlash in the gearing, or leaking seals can cause whining, vibrations, and oil leaks. When choosing an element such as a Mercedes W211 rear axle, it is worth checking the condition of the mounts, housing tightness, and compatibility with half-shafts, while if you are looking for a component such as an E46 differential, it is good to compare the OEM part number, gear ratio, and body style. A useful supplement to the selection process is the article Drive axles and differentials from dismantling – how to choose gear ratios for driving style.

Differential installation procedure includes

Lifting the vehicle and removing the driveshaft.
Unscrewing and removing the old differential.
Installing the new differential while maintaining the manufacturer's tightening torques.
Changing the oil in the differential.
Test drive to verify correct operation.

FAQ

Question	Answer
What is the construction and purpose of differentials?	Differentials are drivetrain components mounted on the drive axle or in the axle housing. They usually consist of a housing, final drive, spider gears, side gears, bearings, and seals. Their task is to distribute torque between the wheels of one axle and allow for a difference in rotational speed while turning.
What are differentials used for?	Differentials are used for smooth power transfer to the wheels while maintaining car stability in corners. Thanks to them, the inner and outer wheels of the drive axle can rotate at different speeds without jerking the drivetrain. Failure of this assembly can cause noise, overload the half-shafts, and impair vehicle handling.
What is the construction and function of differential bearings?	Differential bearing is a system of bearings supporting the pinion shaft and the differential carrier. It serves to maintain the proper position of gear elements, limit backlash, and ensure uniform gear operation. Its condition affects noise levels, gear durability, and the tightness of the entire assembly.
How to choose a differential for a specific car version?	When choosing, it is best to compare the OEM part number, interchangeable numbers, gear ratio, and vehicle placement. It is also worth checking the fuel type, body version, drive type, and compatibility with half-shafts and the driveshaft. If the car was available in several equipment variants, verification by VIN will also be helpful.
What symptoms may indicate differential wear?	Most commonly, these are whining or humming sounds that increase with speed, jerking when changing loads, and noticeable play in the drivetrain. Symptoms also include oil leaks from the housing and uneven operation during turns. Such signals should be compared with the condition of bearings, seals, and mounts.
What does the installation and maintenance of a differential look like?	Installation involves removing the driveshaft, disconnecting the half-shafts, replacing the assembly, and resetting all connections according to the manufacturer's documentation. After installation, check for leaks, mount condition, and the correct oil specified for the given design. In operation, regular checks for leaks, noise, and play appearing during driving are important.

Summary: differentials at the Global Parts automotive store

Differentials are crucial for the operation of the entire drivetrain, so when purchasing, it is worth paying attention to the OEM part number, interchangeable numbers, vehicle placement, and compatibility with the car version. The Global Parts offer includes used and refurbished elements for many models, including for brands such as BMW, Mercedes, Audi, and others. This makes it easier to select the right differential for a planned repair or replacement of the entire assembly. We invite you to contact us – we are here to help you! For more information and interesting facts, we also invite you to visit our automotive blog.

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