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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.

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Condor Speed Shop Differential Stud Kit - 45mm - E30, E28, E36 318ti,...

T#:578193

Part#: DIFSTKT-1

In Stock

$ 32.00 USD

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$ 32.00 USD

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Condor Speed Shop took the hard work out of removing and reinstalling your differential! If you've ever taken out your diff, you know how much of a pain it is to get the bolt holes to line up during re-installation. They never seem to line up perfectly, and getting the bolts to go in can be time-consuming. Condor's diff studs are designed to make your life a little easier. The diff will line up and lift right into the holes every time. 38mm studs are used with OEM or regular subframe bushings. 45mm studs are used with the 12mm riser subframe bushings. You'll need to pull the driveshaft to drop the diff. Use thread locker during install. Recommended for street or race use. Kit includes: 4 Studs 4 Washers 4 Lock Nuts

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Shaft Seal

2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:591509

Part#: 11117568263

In Stock

$ 22.99 USD

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$ 22.99 USD

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Ideal for engine repairs or addressing leaks into the transmission bell housing, this shaft seal is designed to be mounted on the engine block's upper and lower halves, facing towards the transmission housing.

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Conder Speed Shop Solid Transmission Mounts - BMW F22/23 F3X RWD ...

T#:597365

Part#: TRANSIX_F2XF3X

In Stock at Vendor

$ 34.00 USD

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$ 34.00 USD

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These UHMW race grade transmission mounts are the ultimate solution to keep your transmission from moving under heavy load or acceleration. Transmission movement or "play" can cause missed shifts and extreme mechanical damage in some cases.

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Condor Speed Shop Solid Differential Bushing - E30, E28, Z3 & 318ti ...

T#:587122

Part#: DIFE30

Ships in 2 Business Days

$ 55.00 USD

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$ 55.00 USD

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Condor Speed Shop's E30 solid differential bushing is designed for the street and the track. They use UHMW in all of their suspension bushings because it is stiff, has almost zero deflection yet also absorbs some vibration. It will outlast other types of rubber or urethane bushings. With their solid diff bushing, you won't have to worry about any more rubbery flex in your diff during hard acceleration.

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Poly Transmission Mount Set

T#:597363

Part#: TRANSIX_E39P

Ships in 1 Business Day

$ 35.00 USD

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$ 35.00 USD

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The 70A poly mounts are the solution if you are trying to minimize vibration and NVH. They are currently the softest polyurethane mounts on the market. We suggest these for all street cars. If you are building a track car, check out the solid UHMW transmission mounts from Condor Speed Shop.

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Elring Differential Axle Seal - E30 E36 E28 E34 E24 E23 E32 Z3 ...

2X Entries For Our G87 M2 Sweepstakes! We Price Match - Give Us A Call or Chat!

T#:369495

Part#: 33107505602

In Stock

$ 9.64 USD

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$ 9.64 USD

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Rubber seals are often hardened and damaged by excessive heat and constant temperature changes causing them to become brittle and crack or split. If your seal has split, replace it with a new Elring seal for long reliability and to prevent further problems.

Elring is one of the biggest OEM names in the manufacturing of high quality gaskets that are available for very affordable prices. Elring has supplied many automotive names for years with the gaskets that seal your car's components from day 1 so you can rest assured that these components will last for a long time to come!

Fits the following BMW engines:
E30 318i/is 325e 325i/ix M3
E36 318i/ic/is/ti 323i/is 325i/is 328i/is M3
E28 524td 528e 533i 535i
E34 525i 530i 535i
E24 633CSi 635CSi
E23 733i 735i
E32 735i/iL
Z3 1.9 2.5 2.5i 2.8 3.0i M Coupe/Roadster

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Seal Set, Electric Motor

T#:54852011

Part#: B16.900

In Stock

$ 33.99 USD

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$ 33.99 USD

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This high-grade Elring replacement gasket set is engineered for drivers who demand factory-level reliability and zero-compromise sealing performance.

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

T#:44767282

Part#: 082.770

Special Order: No Guaranteed ETA

$ 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...

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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Shaft Seal - Differential (Axle Drive)

T#:54852004

Part#: B46.610

Special Order: No Guaranteed ETA

$ 14.99 USD

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$ 14.99 USD

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This OEM-quality replacement shaft seal from Elring is the perfect fix for keeping your gear oil where it belongs.

Cusco LSD RS 1.5WAY(1&1.5W) R53 MINI COOPER S - Limited Slip Differen...

T#:43041729

Part#: LSD BM0 C15

Back Ordered

3% off MSRP $ 1,480.00

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

$ 1,435.60 USD

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3% off MSRP

$ 1,480.00

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

$ 1,435.60 USD

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