Find Parts That Fit Your Vehicle

Home
Drivetrain
Differential and Gearing Upgrades

BMW Differential and Gearing Upgrades

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.

Sub-Categories

Sort By:

Active Autowerke Differential Support Bracket (DSB) - E36

T#:397248

Part#: 13-004

Ships in 8 Business Days

5% off MSRP $ 429.00

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

$ 408.00 USD

Add to Wish List

Qty

5% off MSRP

$ 429.00

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

$ 408.00 USD

Add to Wish List

The main mounting bolt for the differential in the E36 is susceptible to shearing off during extreme driving conditions. This can cause internal damage to your diff, leaving you stranded at the track or on the side of the road. Active Autowerke's differential support bracket eliminates this issue forever in under an hour installation.

Previously used Active Autowerke Part Number AA-DSB-E36

This product fits the following BMWs:
1992-1999 E36 323i 325i 328i M3

Show More Show Less

Genuine BMW M Performance Limited Slip 2.81 Differential - F22/23 F3X...

T#:402424

Part#: 33108659989

In Stock

2% off MSRP $ 3,370.00

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

$ 3,310.99 USD

Add to Wish List

Qty

2% off MSRP

$ 3,370.00

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

$ 3,310.99 USD

Add to Wish List

Ensure your getting all the power you can to the road with this LSD from BMW Performance

M Performance Limited Slip Differential Kit - 2.81 - F22/23 F3X M240i...

T#:25805756

Part#: 33108659989KTKT

Ships in 1-2 days

$ 3,366.99 USD

Add to Wish List

Qty

$ 3,366.99 USD

Add to Wish List

Looking to upgrade your stock differential to the BMW M Performance differential? This kit includes the M Performance limited slip diff plus all the hardware necessary to install the diff in your BMW! What exactly does an LSD do you ask? Well, without an LSD your car is effectively only 1 wheel drive, in that it can't supply torque to both wheels at the same time and will only supply torque to the wheel with less grip, which is what the shortfall is to an open differential (what most vehicles have). An LSD only lets the wheels spin at different speeds by a limited amount, which is typically a percentage difference, which is when the differential locks and both wheels get power. This is not how locked differentials work such as in off-road trucks which supply equal torque and rotational speed to both rear wheels at the same time, which can cause issues with handling.

Show More Show Less

Genuine BMW M Performance BMW M Performance Limited-Slip Differential...

T#:222981

Part#: 33108659987

Ships in 1-2 days

8% off MSRP $ 3,370.00

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

$ 3,100.35 USD

Add to Wish List

Qty

8% off MSRP

$ 3,370.00

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

$ 3,100.35 USD

Add to Wish List

For the ultimate in track day performance, the M Performance Limited Slip Differential is here! The clutch-type mechanical differential features a 30% lockup on acceleration and 9% lockup on deceleration. The differential works with the existing DSC system to provide excellent traction wet or dry. It uses the stock 3.08 final drive ratio that the stock M235i uses, so fuel economy will not be affected. This item fits the following BMWs:
2014+ F22 BMW 228i M235i

Show More Show Less

IRP Aluminum Differential Bushings - E82 1 M, E9X M3

T#:587016

Part#: IRPDB-9XMAL

Special Order: No Guaranteed ETA

$ 133.99 USD

Add to Wish List

Qty

$ 133.99 USD

Add to Wish List

These aluminum mounts are a direct replacement for the stock rubber bushings and have been lightened to remove excess weight. Using aluminum instead of rubber eliminates the "wind up" inherent in rubber mounts, and this deflection slows suspension & drivetrain response. The tradeoff is an increase in NVH. Features: Stiffens chassis/Improves stability Less wear of other components Better durability Provides better control of chassis geometry Replaces OE: 33312284019, 33312283384 Recommended for racing use only Includes: 1 rear aluminum bushing 2 front aluminum bushings

Show More Show Less

Vargas Rear Bushing Insert Kit - BMW G0X X3/X4, G11/12 7

T#:51778109

Part#: VTT-X3-REAR-INSE

Ships in 10 Business Days

$ 109.99 USD

Add to Wish List

Qty

$ 109.99 USD

Add to Wish List

The VTT G0X Rear Bushing Insert Kit is a critical preventative upgrade for owners of BMW G-Series vehicles.

Vargas Front Differential Bushing Reinforcement Insert Kit - Front - ...

T#:52129733

Part#: G8XDIFFINSFRT

Ships in 10 Business Days

$ 132.99 USD

Add to Wish List

Qty

$ 132.99 USD

Add to Wish List

The Vargas Turbo Technologies Front Diff Reinforcement Kit is a vital upgrade for high-horsepower S58-powered vehicles.

Vargas Front Differential Bushing Reinforcement Insert Kit - Rear - B...

T#:52129737

Part#: G8XDIFFINSTRO

Ships in 10 Business Days

$ 132.99 USD

Add to Wish List

Qty

$ 132.99 USD

Add to Wish List

The G8X Rear Billet Diff Insert Kit is a precision-machined reinforcement component that installs directly into the rear differential bushing.

Vargas Billet Differential Lock Down Kit - Black - BMW G8X

T#:52129738

Part#: VTT-G8X-LOCKDOWN

Ships in 10 Business Days

$ 739.99 USD

Add to Wish List

Qty

$ 739.99 USD

Add to Wish List

This black-anodized kit provides the reinforcement BMW intended but never fully realized in the factory design.

IRP Aluminum Differential Bushings - E46 M3

T#:587020

Part#: IRPDB-46MAL

Special Order: No Guaranteed ETA

$ 151.99 USD

Add to Wish List

Qty

$ 151.99 USD

Add to Wish List

These aluminum mounts are a direct replacement for the stock rubber bushings and have been lightened to remove excess weight. Using aluminum instead of rubber eliminates the "wind up" inherent in rubber mounts, and this deflection slows suspension & drivetrain response. The tradeoff is an increase in NVH. Features: Stiffens chassis/Improves stability Less wear of other components Better durability Provides better control of chassis geometry Replaces OE: 33172282484 Recommended for racing use only Includes: 2 rear aluminum bushing 1 front aluminum bushings

Show More Show Less

Select Vehicle

Purpose

Category

Differential and Gearing Upgrades
- Limited Slip Differentials (3)
- Differential Bushings (6)

Brand

View All Brands

Price

Special Offers

New (4)

Shipping

Free Shipping (8)