BMW 188mm LSD Upgrade by RacingDiffs

Enhance the performance and reliability of your BMW’s limited slip differential (LSD) with RacingDiffs upgrade kits, engineered specifically for the 188mm medium case LSD found in classic BMW 6-cylinder models up to 1999. Compatible with:

• 3 Series: E30, E36
• 5 Series: E28, E34
• 6 Series: E24
• 7 Series: E32
• Z Series: Z1, Z3

Refresh your differential’s performance by replacing worn clutches with new, precision-manufactured components. All kits are plug & play—no modifications required. For installation guidance, refer to RacingDiffs’ YouTube tutorials.

Performance Pack Options

• Service Pack: 2-clutch set. Restores factory LSD performance. Ideal for daily drivers.
• Street Pack (Stage 1): 3-clutch set, preload shim set, ramp saver shim. For spirited street driving and improved locking action.
• Track Pack (Stage 2): 4-clutch set, billet steel cap, preload shim set, ramp saver shim. Designed for track use with maximized grip and durability.
• Race Pack (Stage 3): 6-clutch set, billet steel cap, preload shim set, oil shim set, ramp saver shim. Built for competitive motorsport applications.
• Max Performance Pack (Stage 4): 6-clutch set, billet steel cap, preload shim set, oil shim set, multi-variation ramp set. Offers maximum adjustability and performance for demanding setups.

Note: For kits with a billet steel cap, specify your differential’s gear ratio (2.64–3.07 or 3.15–4.45) when ordering to ensure correct fitment.

For a complete rebuild, a Bearing & Oil Seal Set is also required (sold separately).

OEM Part Numbers

• 33141210626
• 33141203797
• 33141203795
• 33141203794
• 33141206909
• 33141204367
• 33141206919

All RacingDiffs LSD kits include a lifetime warranty for long-term peace of mind.