Diff Lab BMW E28, E30, E32, E34, E36 Diff Builder BMW E28, E30, E32, E34, E36 Diff Builder

Early Model BMW Diff Builder

Use this diff builder to create your ultimate differential. Options on this page are for E28, E30, E32, E34 and E36 6-cylinder vehicles including 323i, 325i, 328i, 525i, 530i, 535i, 730i, 735i, E30 M3, E28 M5, E34 M5 and E36 M3 3.0L.

Your early model (pre 1998) BMW responds very well to an LSD upgrade and a ring and pinion upgrade. Diff Lab's limited slip differentials are the very best available. Choose only the very best for your BMW.

When you order a Diff Lab differential, it will be assembled within 1-3 business days and delivered to your door, or to a Diff Lab partner workshop. Configure your differential using the options. You can choose your desired gear ratio, LSD configuration and upgrades.

If you are not sending a diff into be built, and you need an exchange differential, a fully refundable core deposit of $350 is added. If you do not return your old differential, you will not receive your core deposit back. If your exchange diff has an LSD in sound condition, an additional $400 will be added to your refund (total $750 refund). Return freight is available.


Differential Options

LSD Options: You can configure your ultimate LSD with an original BMW LSD in a 4-clutch, 1.5-way or 2-way configuration. Custom lockup is available is both 1.5-way and 2-way units. The first choice is the 4-clutch 2-way unit, and this suits most road and race vehicles.

Ring and Pinion: All ratios are available including new Motorsport gears. Gears in the range of 2.93 to 3.07 and above 4.88 are only compatible with the original BMW LSD. All of the common ratios e.g. 3.46, 3.91, 4.10, 4.45 etc are all compatible with any LSD.

LSD Bolt Upgrade: Bolt ugprades are available for original BMW LSDs. This is highly recommended.

Diff Bolt Upgrade: The case bolts are often corroded, rusted and stretched. Replacing these is highly recommended.

Speedo Delete: The speedo sensor is a failure point, and should be removed for race vehicles. Add this upgrade to replace with speedo sensor with a machined T6 aluminium plug and a new o-ring.

Race Blueprinting: Diff Lab's special differential specifications for dedicated race differentials. This involves setting up the differential to handle higher temperatures and to have lower resistance. Race blueprinting is not for road vehicles.


Freight Options

Postage: Free delivery of your new diff to RX Automotive Brisbane and BMWreckers Brisbane. An additional money request will be sent via Paypal if the checkout under-prices the freight significantly for your address, as it will do for all regional areas.

Exchange Freight Option: Select this if you would like Diff Lab to organise the freight to return your old differential on your behalf. You will be Emailed a courier label to stick onto the parcel and told which day to leave it out for courier collection. Select 'not applicable' if you are going to organise your own fright to return your old differential.


Why Buy From Diff Lab?

See why this is the best choice for you and your BMW:

  1. Built in Brisbane by one of the most experienced BMW LSD builders in Australia.
  2. Have your differential swapped over or installed at any of Diff Lab's partner woprkshops.
  3. Fully blueprinted to target specifications, not to any old specs within a wide range.
  4. All rebuild components are genuine. No cheap local parts are used e.g. Chinese made oil seals.
  5. New clutches and Hardcore Floater Plates installed as required.
  6. Have any ratio you like - even the rare ones and Motorsport gears.
  7. Delivered to your door and ready to bolt in. Just add LSD oil (Liqui Moly or Penrite 80W140 synthetic).
  8. Exchange service with fast change-over. Usually assembled within 1-2 days.
  9. LSDs are inspected carefully with parts replaced as required.
  10. Never has an LSD been returned to Diff Lab under warranty.
  11. Should you need support, you are in good hands and Diff Lab will get you back on the road ASAP.
Diff Lab often rebuilds already rebuilt LSDs. There is only one way to rebuild an LSD and that is the correct way. Too often Diff Lab opens rebuilt LSDs to find internals installed backwards, upside-down, worn beyond manufacturer limits, and non-OEM parts used. I often find strange looking shims in places where they don't belong. I find a lot of metal shavings, deformed parts, bolts without thread locker, incorrect or undersize bolts installed, strange modified LSDs which self-destruct and assembly specs way outside of the manufacturer's guidelines. These unlucky customers have to pay for two rebuilds: the dodgy work, and then Diff Lab's rebuild. Don't get cought out. Diff Lab diffs are built to work and last. They will not need to be opened for many years of road driving. Just change the oil with good quality a quality synthetic product as needed. You wouldn't hire a clown to fix a leak in the john, so don't hire one to work on your differential either. Choose Diff Lab instead.

$699.00 In Stock

Early Model BMW Diff Builder

Use this diff builder to create your ultimate differential. Options on this page are for E28, E30, E32, E34 and E36 6-cylinder vehicles including 323i, 325i, 328i, 525i, 530i, 535i, 730i, 735i, E30 M3, E28 M5, E34 M5 and E36 M3 3.0L.

Your early model (pre 1998) BMW responds very well to an LSD upgrade and a ring and pinion upgrade. Diff Lab's limited slip differentials are the very best available. Choose only the very best for your BMW.

When you order a Diff Lab differential, it will be assembled within 1-3 business days and delivered to your door, or to a Diff Lab partner workshop. Configure your differential using the options. You can choose your desired gear ratio, LSD configuration and upgrades.

If you are not sending a diff into be built, and you need an exchange differential, a fully refundable core deposit of $350 is added. If you do not return your old differential, you will not receive your core deposit back. If your exchange diff has an LSD in sound condition, an additional $400 will be added to your refund (total $750 refund). Return freight is available.


Differential Options

LSD Options: You can configure your ultimate LSD with an original BMW LSD in a 4-clutch, 1.5-way or 2-way configuration. Custom lockup is available is both 1.5-way and 2-way units. The first choice is the 4-clutch 2-way unit, and this suits most road and race vehicles.

Ring and Pinion: All ratios are available including new Motorsport gears. Gears in the range of 2.93 to 3.07 and above 4.88 are only compatible with the original BMW LSD. All of the common ratios e.g. 3.46, 3.91, 4.10, 4.45 etc are all compatible with any LSD.

LSD Bolt Upgrade: Bolt ugprades are available for original BMW LSDs. This is highly recommended.

Diff Bolt Upgrade: The case bolts are often corroded, rusted and stretched. Replacing these is highly recommended.

Speedo Delete: The speedo sensor is a failure point, and should be removed for race vehicles. Add this upgrade to replace with speedo sensor with a machined T6 aluminium plug and a new o-ring.

Race Blueprinting: Diff Lab's special differential specifications for dedicated race differentials. This involves setting up the differential to handle higher temperatures and to have lower resistance. Race blueprinting is not for road vehicles.


Freight Options

Postage: Free delivery of your new diff to RX Automotive Brisbane and BMWreckers Brisbane. An additional money request will be sent via Paypal if the checkout under-prices the freight significantly for your address, as it will do for all regional areas.

Exchange Freight Option: Select this if you would like Diff Lab to organise the freight to return your old differential on your behalf. You will be Emailed a courier label to stick onto the parcel and told which day to leave it out for courier collection. Select 'not applicable' if you are going to organise your own fright to return your old differential.


Why Buy From Diff Lab?

See why this is the best choice for you and your BMW:

  1. Built in Brisbane by one of the most experienced BMW LSD builders in Australia.
  2. Have your differential swapped over or installed at any of Diff Lab's partner woprkshops.
  3. Fully blueprinted to target specifications, not to any old specs within a wide range.
  4. All rebuild components are genuine. No cheap local parts are used e.g. Chinese made oil seals.
  5. New clutches and Hardcore Floater Plates installed as required.
  6. Have any ratio you like - even the rare ones and Motorsport gears.
  7. Delivered to your door and ready to bolt in. Just add LSD oil (Liqui Moly or Penrite 80W140 synthetic).
  8. Exchange service with fast change-over. Usually assembled within 1-2 days.
  9. LSDs are inspected carefully with parts replaced as required.
  10. Never has an LSD been returned to Diff Lab under warranty.
  11. Should you need support, you are in good hands and Diff Lab will get you back on the road ASAP.
Diff Lab often rebuilds already rebuilt LSDs. There is only one way to rebuild an LSD and that is the correct way. Too often Diff Lab opens rebuilt LSDs to find internals installed backwards, upside-down, worn beyond manufacturer limits, and non-OEM parts used. I often find strange looking shims in places where they don't belong. I find a lot of metal shavings, deformed parts, bolts without thread locker, incorrect or undersize bolts installed, strange modified LSDs which self-destruct and assembly specs way outside of the manufacturer's guidelines. These unlucky customers have to pay for two rebuilds: the dodgy work, and then Diff Lab's rebuild. Don't get cought out. Diff Lab diffs are built to work and last. They will not need to be opened for many years of road driving. Just change the oil with good quality a quality synthetic product as needed. You wouldn't hire a clown to fix a leak in the john, so don't hire one to work on your differential either. Choose Diff Lab instead.

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BMW E28, E30, E32, E34, E36 Diff Builder

  • Brand: Diff Lab
  • Product Code: BMW-Diff-E30-E36-Diff-Builder
  • Availability: In Stock
  • $699.00


Available Options