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  • BMW 188mm Medium case LSD - Clutch plate set (E30, E36, E34) 6 Cyl.

    RD4012

    Choose your pack

    BMW 188mm LSD Upgrade by RacingDiffs 

    Elevate Your Driving Experience

     

    Restore and enhance your BMW limited slip differential with RacingDiffs upgrade kits designed specifically for the 188mm medium-case LSD. These differentials were commonly found in most 6-cylinder BMW models up to 1999.

    BMW 188mm LSD clutch disc and inner plate upgrade kit explained by RacingDiffs

    Fitment (BMW 188mm LSD)

    BMW 188mm medium-case LSDs were used in the following models:

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

    If you are purchasing a pack that includes the reinforced billet steel cap, please leave a note with your differential gear ratio.

    There are two different billet caps depending on the ratio: 2.64–3.07 or 3.15–4.45.

    Every kit is Plug & Play — no machining or modifications required.

    Performance Overview

    Replacing worn clutch plates restores original LSD performance. For increased lock and durability in spirited street or track driving, Stage 1 and Stage 2 packs are recommended.

    For competition use and maximum performance, choose Stage 3 or Stage 4.

    Stage 4 pack is covered by our LIFETIME WARRANTY.

    Choose Your Performance Level

    Service Pack

    • 2 × clutch discs
    • Ideal for daily driving and factory-spec refresh

    Street Pack – Stage 1

    Track Pack – Stage 2

    Race Pack – Stage 3

    • 6 × clutch discs
    • Reinforced billet steel cap
    • Preload shim set
    • Ramp saver shim
    • Oil shim set

    Max Performance Pack – Stage 4

    Installation & Support

    All RacingDiffs LSD upgrade kits are Plug & Play. No modifications are required.

    Installation tutorials are available on our official YouTube channel .

    For a complete rebuild, we recommend adding a bearing & oil seal set .

    OEM Part Numbers (Reference)

    33141210626 / 33-14-12-10-626
    33141203797 / 33-14-12-03-797
    33141203795 / 33-14-12-03-795
    33141203794 / 33-14-12-03-794
    33141206909 / 33-14-12-06-909
    33141204367 / 33-14-12-04-367
    33141206919 / 33-14-12-06-919