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BMW Differential and Gearing Upgrades for BMW 5 Series E60 (2004-2010)

Upgrading various parts of the differential can have tremendous benefits in your car's performance. It's easy to forget that the differential is a source for making your car faster and handle better so it's often overlooked. The engine is not the only place to make the car faster. Our differential options vary from gearing upgrades to limited slip conversions. You can purchase the ring & pinion gear sets on their own (professional installation required) or have us build a diff around your own specifcations. The options are almost endless! Every custom-built diff is fully rebuilt with seals and bearings. We also design and supply bushing options to reduce driveline wind-up, finned differential covers for better cooling, and more!

Ratio Changes - Changing the differential gearing is one of the best and most-effective upgrades you can make on any BMW (old or new). By using a shorter (numerically higher) final drive ratio you are increasing your RPM relative to road speed - this puts you in a more powerful RPM range than before! Since you're in a 'meatier' part of the power band you're now putting down more power/torque to the ground. If you can trade outright top speed for faster acceleration at daily speeds then this is the perfect upgrade for you.

Limited Slip Upgrades - Sadly, many BMWs today are not equipped with a limited slip (posi-traction) differential. BMW has tried to compensate by using traction control that cuts power at the engine or applies the brakes to retard wheel spin (or a combination of both). But nothing beats the function and feel of a a true LSD which may be why BMW continues to use them in M cars. Our LSD upgrades can be done a number of different ways - a factory-type limited slip unit with either 2 or 3 clutch packs, helical type, OS Giken unit, or something truly custom. We can also vary ramp angles and setup to change the limited-slip behavior under acceleration, deceleration, and cornering. Need a custom diff? Call or e-mail to have a quote.

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Genuine BMW Lock Ring - 27107539525

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T#:53816

Part#: 27107539525

Ships in 2 Business Days

6% off MSRP $ 16.99

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$ 16.00 USD

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6% off MSRP

$ 16.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 16.00 USD

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Replace these when reassembling the transfer case. Genuine BMW Lock Ring - 28X2 This item fits the following BMW Chassis: E70 X5M,E71 X6M,E53 48IS,E53 X5,E70 X5,E71 X6,E83 X3,E90,E92,F01,F02,F06,F10,F12,F13,F15,F16,F25 X3,F26 X4 X4,F30,F31,F32,F33,F34,F36

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Output Shaft Seal

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T#:54744784

Part#: 24207588763

Ships in 1-2 days

$ 2.99 USD

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$ 2.99 USD

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If you notice a puddle of transmission fluid forming underneath your vehicle, the output shaft seal may have failed and is leaking. Stop the leak before it can cause internal transmission damage and replace the output shaft seal in your vehicle today. This seal is on the back of your transmission for the front to rear propeller or driveshaft.

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Genuine BMW At-Front Differential I=3,64 - 31507572052 - E90,E92 ...

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T#:55841

Part#: 31507572052

Ships in 2 Business Days

4% off MSRP $ 2,833.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 2,706.99 USD

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4% off MSRP

$ 2,833.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 2,706.99 USD

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Genuine BMW At-Front Differential - I=3,64
This item fits the following BMW Chassis:
E90,E92

At-Front Differential - E60, E61, E90, E91, E92

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T#:55858

Part#: 31507601768

Ships in 8 Business Days

4% off MSRP $ 2,833.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 2,706.99 USD

Add to Wish List

Qty

4% off MSRP

$ 2,833.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 2,706.99 USD

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Genuine BMW At-Front Differential - I=3,46
This item fits the following BMW Chassis:
E90,E92

BMW E60 E90 E92 Re Manufactured Front Differential

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T#:379476

Part#: 31507575785KT

Ships in 8 Business Days

$ 2,706.99 USD

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$ 2,706.99 USD

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BMW E60 E90 E92 Re Manufactured Front Differential from Turner Motorsport offers a reliable and cost-effective solution to restore your BMW's drivetrain performance. This high-quality, re-manufactured differential is engineered to meet or exceed OEM standards, ensuring smooth power delivery and optimal handling. Designed to replace a worn or damaged differential, this unit provides the dependability and durability you expect from Turner Motorsport's expertise in BMW components.

Precision re-manufactured to meet OEM specifications
Enhances power distribution and vehicle handling
Cost-effective alternative to a new differential
Designed for a smooth and quiet driving experience
Backed by Turner Motorsport’s commitment to quality

Replace your worn front differential with the BMW E60 E90 E92 Re Manufactured Front Differential for a renewed driving experience and superior performance.

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At-Front Differential - E60, E90, E92

affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms

T#:55823

Part#: 31507533735

Ships in 8 Business Days

4% off MSRP $ 2,833.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 2,706.99 USD

Add to Wish List

Qty

4% off MSRP

$ 2,833.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 2,706.99 USD

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Genuine BMW At-Front Differential - I=42:13=3,23
This item fits the following BMW Chassis:
E90,E92

Installation Tool - Oil Assembly Aid

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T#:31589336

Part#: 83192405829

Ships in 8 Business Days

8% off MSRP $ 35.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 32.99 USD

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8% off MSRP

$ 35.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 32.99 USD

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Elring Differential Output Shaft Seal - BMW E82 E9X Z4 E39 E60 E63/64...

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T#:44767282

Part#: 082.770

In Stock

$ 24.99 USD

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$ 24.99 USD

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Eliminate differential leaks with all new output shaft axle seals from Elring Replaces BMW p/n 33107568368, 33107505605, & 33100152629

Elring Differential Input Shaft Seal - 50x80x9mm - BMW E82 1M, E46 M3...

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T#:44733256

Part#: 703.190

Special Order: No Guaranteed ETA

$ 34.99 USD

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$ 34.99 USD

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If your differential is leaking fluid from the input shaft at the front of the diff case, there is a good chance this seal is faulty. Replace your leaking seal with this new seal from Elring to prevent further fluid loss and prevent damage to your differential. Replaces BMW p/n 33121213949, 33121212197, & 33121204847

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Front Differential Input Seal Kit - E46, E53, E60, E61, F30

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T#:41289766

Part#: 31521428678TKT

Back Ordered

$ 52.99

This product was last offered at the strikethrough price on
07-06-2026

$ 50.99 USD

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$ 50.99 USD

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This kit comes with the seal and both dust covers needed to re-seal your vehicles input shaft on the front differential.

Powerflex BMW E60 - E61 5 Series Rear Diff Bushing

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T#:33880014

Part#: PFR5726

Back Ordered

$ 62.99 USD

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$ 62.99 USD

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The Powerflex Rear Diff Rear Bushings for the BMW E60 5-Series and E63 6-Series are performance-oriented components designed to upgrade the rear differential mount system. Here’s a detailed description of their features and benefits: Durable Polyurethane Construction: These bushings are crafted from high-quality polyurethane, which is known for its resilience and ability to withstand harsh conditions. Unlike factory rubber bushings that can degrade over time, Powerflex bushings maintain their integrity and performance even under extreme driving conditions. Enhanced Differential Control: The stiffer nature of the polyurethane material reduces unwanted movement of the rear differential during acceleration and cornering. This results in improved control and stability, allowing for better power delivery and overall performance. Improved Handling Dynamics: By minimizing differential movement, the Powerflex bushings help maintain the proper alignment of the rear suspension. This leads to enhanced handling characteristics, providing a more connected and responsive driving experience, especially in spirited or performance driving scenarios. Minimized Wear and Tear: The durable construction of these bushings reduces the likelihood of premature wear, extending the lifespan of the differential and surrounding components. This makes them a smart investment for both daily drivers and performance enthusiasts. Reduced NVH Levels: While offering performance enhancements, Powerflex has designed these bushings to keep noise, vibration, and harshness (NVH) increases to a minimum. This balance allows for a comfortable driving experience without sacrificing the benefits of improved handling. Easy Installation: Specifically designed for the BMW E60 and E63 models, these bushings offer a direct replacement for the factory components. This ensures a hassle-free installation process, making them accessible to both DIY enthusiasts and professional mechanics. Ideal for Performance Upgrades: Whether you're modifying your vehicle for track use or simply looking to enhance everyday performance, these bushings provide a significant upgrade over the stock components, making them a popular choice among BMW enthusiasts.

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BMW Differential and Gearing Upgrades for BMW 5 Series E60 (2004-2010)

Sub-Categories

Genuine BMW Lock Ring - 27107539525

Output Shaft Seal

Genuine BMW At-Front Differential I=3,64 - 31507572052 - E90,E92 ...

At-Front Differential - E60, E61, E90, E91, E92

BMW E60 E90 E92 Re Manufactured Front Differential

At-Front Differential - E60, E90, E92

Installation Tool - Oil Assembly Aid

Elring Differential Output Shaft Seal - BMW E82 E9X Z4 E39 E60 E63/64...

Elring Differential Input Shaft Seal - 50x80x9mm - BMW E82 1M, E46 M3...

Front Differential Input Seal Kit - E46, E53, E60, E61, F30

Powerflex BMW E60 - E61 5 Series Rear Diff Bushing

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