BMW Differential Rebuild





Get Your BMW Differential Rebuilt By Garageaholic!

Refresh your differential with this classic rebuild service. This refresh includes a solid replacement of all seals and bearings (bearings optional). We fully mechanically or chemically strip all components, then paint/polish before reassembly to make your differential look as good as it will perform!

We’re delighted to announce our partnership with RacingDiffs to provide all performance and service clutch disc kits, including Stage 1, 2, 3, and 4 (special request) sets, all available to be upgraded in your 168mm (small case), 188mm (medium case), or 210mm (large case) differentials for E30, E28, E24, E31, E21, E10, E34, E39, E46, E90, E92, E36, E38, E32…. and more!

Additionally, we can perform any gear ratio change as well! Keep in mind that the gear changes must be in the same gear ratio range where the same LSD module may be used. For example. 2.79 – 3.07 all use the same LSD module in that gear range. However, move up to the 3.15 – 4.10+ range and a different LSD design is used within that range. Keep in mind that Gear Changes will come at NO EXTRA Cost if you provide the Ring/Pinion Gears!

In more detail on our partnership with RacingDiffs, all LSD units can come with brand new Clutch Discs, dog ears, oil rings, shims, and possibly in multi-variable ramps! We promote installation of the stage 1, 2, 3, and 4 versions. Stage 4 can be done and quoted as a special request. Or you may opt for a simple 2 clutch “service pack”. All of these options are selectable to your specific need right here.

So What’s The Process?

  • First, place order for the service on our website here, with all applicable options selected. Full payment is required.
    • If you select the diff size, and no other options, the service included is seal and O-Ring Replacements, crush washer, rear seal, and complete clean/paint, including shipping back to you!
  • Second, pack and ship your differential to our location in zip code 13850.
  • Third, when we receive the differential, the lead time to ship back to customer is 4 weeks.

Customer pays to ship differential to us. Price includes return shipping of rebuilt differential back to customer. Any other questions, please feel free to contact us!

Additional information

Diff Size

168mm Small, 188mm Medium, 210mm Large

RacingDiffs LSD

N/A – Open, 2 Clutch Service, Stage 1 Street, Stage 2 Track, Stage 3 Race


No Thank you, Add Pinion/Ring Bearings

Diff Bushing

No Thank you, Poly/Delrin/Rubber


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