Diff Lab assembles differentials locally in Brisbane. We use all OEM bearings, seals and other items. We blueprint the entire unit to OEM specifications. Our work is guaranteed and the differentials are ready to race, drift, skid or slide. Diff Lab prefers to assemble your differential in the Diff Lab workshop and send you a final product.
Occasionally it might be necessary to have your diff assembled locally, or to have it removed and reinstalled to the vehicle. In that case the new parts or new differential can be sent directly to one of our partner workshops. These workshops are the only premises where relationships have been built over time, and these persons are trusted to install your new limited slip differential. This list of workshops represents some of the very best independent service centers in Australia. Their values and work ethics are line line with Diff Lab's own. Diff Lab deals directly with the workshop owners to offer you the very best service and support.
I have relationships with other trusted workshops and differential builders who are not listed here. First and foremost if I assemble the differential it will be assembled correctly. If you need to use another workshop for personal reasons, I have trusted diff builders all over the country. I can discuss this with you when you are ready to order.
Diff Lab's recommended workshops are:
Brisbane Motor Works
BM Racing Developments
Road and Race Performance
Using non-recommended workshops
If you choose to use a non-recommended workshop or diff builder, you are exposing yourself to the risk of damage to the differential for which Diff Lab will not be liable, and generally will not provide support for. When using a non-recommended diff builder who is not a BMW specialist, you are rolling the dice with a diff builder who:
- Has no BMW pinion shims for setting the pinion depth
- Has no BMW side shims for setting the carrier pre-load or backlash
- Will not use OEM bearing pre-load and backlash specifications
- Has little to no experience with BMW differentials
- Will not be able to troubleshoot issues related to the assembly
- May damage an expensive gear set, bearing set or LSD unit.
- Another full strip, clean and rebuild
- Another new bearing set, new seals, and many other consumables
- Another 3-4 hours labour, or possibly more
- A new ring and pinion
- New LSD internals
- Machine work
- A new differential case
- A new LSD top cap and bolts
- A new LSD unit
- Gear lapping
- Labour intensive removal of metal particles
- New side covers
- Gear lapping
- Removal of parts which don't belong.
Diff LabI understands that you may have a workshop you're comfortable with. If they are going to use a diff builder who has little to no tools, parts, spares, knowledge and experience with BMW differentials, you're exposing yourself to unnecessary risk and you may pay the price. Diff Lab will not provide replacement parts where items are damaged due to incorrect installation. In these instances these parts can be supplied at a discount, but never provided as a warranty replacement (free of charge). You should reduce your risk exposure by using a trusted BMW specialist only.