168 mm Differential Rebuild Bearing Set (Part No. RD2001)

BMW Millimeter Differential Bearing
Replacement Kit (up to 1999)
Restore your classic BMW’s differential performance with RacingDiffs’ Millimeter Differential Bearing Replacement Kit. Tailored for mm-type differentials (bolt-on side caps securing the carrier) used in models up to 1999, this kit delivers OEM-quality parts for a complete, durable repair.
Features

• Purpose-built for mm-type diffs (pre-’99): For bolt-on side-cap differentials used up to 1999.
• OEM-quality components: Engineered for long life and factory-correct fit/function.
• Comprehensive kit: Includes bearings, seals, crush sleeve, and O-rings for a thorough rebuild.
• Size coverage: Available for 168 mm (4-cyl), 188 mm (6-cyl), and 210 mm (8-cyl) applications.
• Guided support: VIN-based identification video and installation tutorials in our video gallery.

Fitment:

• 3 Series: E21 (big case), E30, E36
• 5 Series: E28, E34
• 7 Series: E23, E32, E38 (early models)
• 8 Series: E31
• Z Series: Z1, Z3, Z8

*If your exact year/market is not listed, contact us to confirm mm-type compatibility.