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RacingDiffs is the highest Performance Limited slip differential (LSD) manufacturers, mostly for BMW. Progsive LSD conversion sets, LSD friction plates, Bearingsn oil seals - all in one place. The bespoke solution for track, drift, rally and the street. Online shop. Worldwide shipping. PayPal express checkout.
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RacingDiffs (racingdiffs-store.myshopify.com) is a RS-based online store specializing in /Autos & Vehicles/Parts & Services. The store is generating approximately €608K in monthly revenue according to BrandSearch estimates, attracting 69K monthly visitors, with a catalog of 7 products. This brand ranks as a growing store with steady visitor engagement in its category. Their technology stack includes Currency Converter Bear, Countdown Timer Ultimate, and Image Gallery Video Gallery EA for enhanced store functionality. Geographic distribution shows 20% of traffic from United States, followed by 12% from Australia.
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Top 6 products from this store. 7 total in catalog.
Why RacingDiffs LSD Conversion Set is Your Best Choice Over eBay Alternatives When considering an LSD conversion set, two main factors set RacingDiffs apart: Unrivaled Material Quality: Our plates are crafted from top-tier tool steel, undergoing heat treatment and nitration for unparalleled wear resistance. But we went further. We introduced friction discs between plates and spider gears, made with the same exemplary material as our LSD clutch plates. This eradicates the issue of metal shavings, a prevalent problem with budget-friendly kits like Phantom grip. Peak Performance with Progressiveness: Our Progressive LSD conversion set takes inspiration from ZF plated LSD units, boasting ramp angles. This design achieves low pre-load while retaining a dynamic lock capability. Essentially, you experience the ease of an open diff during slow turns, but with both wheels receiving torque under load. See this Video for an illustration. With these enhancements, RacingDiffs stands as the market's most avant-garde LSD kit. Features of Our Easy Mount Version: No need for spider gear machining. Comes with all essential installation components. Compatibility : Fits a wide range of BMW non-M models. To find the right set for your model, check this video or share the last 7 digits of your VIN for assistance. Specific exceptions and notes are detailed below. The set is available for the most BMW non M models such as: 1 series: E81, E82, E87, E88, F20 3 series: E30, E36, E46, E90, E91, E92, E93, F30 5 series: E28, E34, E39, E60, E61 6 series: E63, E64 7 series: E23, E32, E38, E65, E66, E67 X1: E84 (rear diff) X3: E83 (rear diff) X5: E53, E70 (rear diff) Exceptions: Z4, X3 has 188L (168L) differential type, although catalog shows 188K (168K) . All models produced after year 2008 have 188LW and 215LW, although catalog shows 188L and 215L. E36 compact production year 2000 have 188K , although catalog shows 188mm . Key Notes : Prior to installation, inspect the inner surface of small spider gears to ensure they're undamaged. If they're not smooth, they should be machined for optimal performance. Post-2008 BMW models have a welded ring gear to the carrier unit. For aftermarket LSD unit installation, including RacingDiffs, this ring gear must be machined off. RacingDiffs Recommends Motul Gear Competition 75w140 oil for all products. Watch Installation tutorials in our Video Gallery . If you like the content, please feel free to subscribe to our Youtube channel . *Due to continued product improvement, the product illustrated on the photo may vary slightly from the actual product.
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 . 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 3 × clutch discs Preload shim set Ramp saver shim Track Pack – Stage 2 4 × clutch discs Reinforced billet steel cap Preload shim set Ramp saver shim 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 6 × clutch discs Reinforced billet steel cap Preload shim set Oil shim set Multi-variation ramp angle set 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
RacingDiffs LSD Clutch Pack Upgrade for BMW M3, M5, M6 & Z4M (M Clunk Fix) Looking to enhance your BMW’s traction, eliminate the infamous M Clunk , and improve handling on track or spirited road drives? The RacingDiffs Clutch Pack LSD Rebuild Kit is the proven solution for restoring and upgrading OEM Motorsport limited-slip differentials. This rebuild kit directly replaces the stock clutch plates — with no modifications required — while delivering noticeably improved locking performance and long-term durability. Features Direct OEM Replacement: Installs in place of the factory clutches with no machining, no grinding, and no special modifications. M-Clunk Elimination: Upgraded friction discs restore proper internal tension and significantly reduce or eliminate the common “clunk” noise during gear transitions. Enhanced Locking Performance: Provides higher and more stable lock than worn OEM clutches — ideal for spirited and track driving. Protects Your Viscous Coupler: Reduces stress and prevents premature failure by offering consistent LSD performance under load. Premium Molybdenum-Ceramic Coating: Motorsport-grade friction layer designed for heat resistance, smooth engagement, and long lifespan. Complete Video Support: Step-by-step installation tutorials available in the RacingDiffs Video Gallery . Performance Benefits Completely resolves M Clunk, tapping, and free-play noises. Provides smoother and more consistent LSD lock engagement. Improves stability and rear-end control during cornering and acceleration. Extends the lifespan of the differential assembly. Perfect upgrade for track-day and high-performance driving. Advanced Pack Option The Advanced Pack includes everything from the Basic Clutch Kit PLUS the complete Bearing & Oil Seal Replacement Set . Save 10% when purchased as a bundle. Prevents differential whine, bearing wear, and leaks. Ideal for restoring a high-mileage or track-driven differential. Fixing the Free Play / Tap Issue Most BMW M3 Motorsport LSDs suffer from right-side drive shaft free play, causing a “tap” or “click” when selecting 1st gear. The RacingDiffs FREE PLAY DELETE SHIM provides a permanent solution and eliminates oil leakage on the right side of the differential. Fitment Compatible with BMW Motorsport clutch-type LSD units found in: BMW M3 (E46, E36 Motorsport LSD retrofits) BMW M5 BMW M6 BMW Z4M Installation Tutorial Watch the full LSD rebuild and M-Clunk explanation here: Additional Notes The Opening Tool is required for RD4025, RD4026, and RD4060: Recommended Oil: Ravenol Racing 75w140
RacingDiffs Precision Shim Kit — BMW Differential Backlash Adjustment (168 / 188 / 210 mm) When integrating an LSD or changing final drive ratios, precise backlash and carrier preload are critical. The RacingDiffs Precision Shim Kit delivers the fine, repeatable adjustment you need for silent, long-life operation. Key Features Broad compatibility: Works with BMW 168 mm , 188 mm , and 210 mm differentials (E21, E28, E30, E36, E34, E32, E31, Z3). Precision-centric: 10 shims ranging 1.0–2.0 mm in 0.1 mm increments for accurate backlash setup. Noise prevention: Correct backlash eliminates whine and protects ring-and-pinion from premature wear. Motorsport-grade repeatability: Fine steps reduce trial-and-error and make reassembly consistent. Performance Benefits Quiet, durable operation after LSD installs or ratio changes. Improved gear life by keeping contact pattern within spec. Faster setup thanks to predictable 0.1 mm steps. Technical Specs / Installation Tips Kit contents 10× precision shims, 1.0–2.0 mm (0.1 mm increments). Intended use Carrier shim selection to set backlash and bearing preload after LSD or ring/pinion changes. Measurement Use a dial indicator at the ring gear to set backlash to BMW spec; verify tooth contact with marking compound. Best practices Record shim stacks during trials; torque fasteners per BMW spec; rotate and re-measure after seating bearings. Note: Backlash/preload targets vary by differential family—follow BMW service specs for your chassis. Fitment (Typical BMW Platforms) E21 E28 E30 E36 E34 E32 E31 Z3 If you’re unsure about your differential size (168/188/210), send us your VIN and we’ll confirm before you order. OEM Cross-References (Backlash Shims) Diff Size OEM Part Numbers 168 mm 33139065731 / 33-13-9-065-731 / 33 13 9 065 731 / 33.13.9.065.731 33139065732 / 33-13-9-065-732 / 33 13 9 065 732 / 33.13.9.065.732 33139065733 / 33-13-9-065-733 / 33 13 9 065 733 / 33.13.9.065.733 188 mm 33139065734 / 33-13-9-065-734 / 33 13 9 065 734 / 33.13.9.065.734 33139065735 / 33-13-9-065-735 / 33 13 9 065 735 / 33.13.9.065.735 210 mm 33139065736 / 33-13-9-065-736 / 33 13 9 065 736 / 33.13.9.065.736 33139065737 / 33-13-9-065-737 / 33 13 9 065 737 / 33.13.9.065.737 Every BMW enthusiast understands the value of precise setup. With RacingDiffs, you’re not just adjusting—you’re tuning to perfection .
BMW 210mm Limited Slip Differential (LSD) Upgrade by RacingDiffs Optimize the performance of your high-end BMW with our clutch plate sets tailored for 210mm BMW clutch-type LSDs . Designed for models up to 1999, these packs restore worn differentials or dramatically increase lock and durability for track use. Fitment Compatible with OEM BMW 210mm clutch-type LSDs found in: 3 Series: E36 M3 S52B32 5 Series: E28 M535i & M5, E34 V8 & M5, E39 M5 6 Series: E24 M6 7 Series: E32 735i (M30 automatic), 740i & 750i 8 Series: E31 V8 & V12 Z Series: Z8 S62 Benefits & Features Rejuvenation – restores worn LSDs to original performance. Tailored performance – service, track, race, and max-performance options. Plug & play – no modifications required for OEM BMW 210mm LSDs. Lifetime Warranty – engineered for extreme durability. Available Performance Stages Whether you want to refresh your differential or extract maximum performance, RacingDiffs offers multiple upgrade levels: 1. Service Pack 2 × clutch discs Ideal for standard rebuilds and maintenance 2. Stage 1 – Track Pack 2 × clutch discs Pre-load shim set Ramp saver shim 3. Stage 2 – Race Pack 4 × clutch discs Pre-load shim set Ramp saver shim 4. Stage 3 – Max Performance Pack 4 × clutch discs Pre-load shim set Multivariant ramp angle set Oil Recommendation For optimal performance and longevity, RacingDiffs recommends using Ravenol Racing 75W-140 or equivalent high-performance LSD oil. OEM Part Numbers (Reference) 33141207207 / 33-14-12-07-207 33141207204 / 33-14-12-07-204 33141207205 / 33-14-12-07-205 33141207206 / 33-14-12-07-206 33141207208 / 33-14-12-07-208 33141207202 / 33-14-12-07-202 33141210707 / 33-14-12-10-707
BMW 168mm Limited Slip Differential Restore and Elevate Performance Specifically designed for most 4-cylinder BMW models before 1999, the small-case (168mm) Limited Slip Differential has been a cornerstone for models like the E21, E30, E36, and Z3 . Ensure you're well-informed; watch our explanatory video before placing an order. Fitment BMW 168mm small-case clutch-type LSDs were typically found in most 4-cylinder BMW models up to 1999 , including: E21 E30 E36 Z3 Choose Your Pack Service Pack 2-clutch set Restores factory feel and OEM-level performance Stage 1 – Track Pack 2-clutch set with RacingDiffs durable clutch plates for optimal grip and longevity Billet steel cap Ramp saver shim designed for prolonged differential health Stage 2 – Race Pack Aggressive 4-clutch set with RacingDiffs enhanced clutch plates for a better performance curve Pre-load shim set Billet steel cap for superior strength and stability Ramp saver shim and pre-load shim set for precise lock and improved handling Stage 3 – Max Performance Pack Aggressive 4-clutch set with RacingDiffs premier clutch plates Billet steel cap Pre-load shim set Multi-variation ramp set – fine-tune differential behavior for optimal power delivery and traction Complete Rebuild Recommendation To rebuild your differential completely, we recommend adding the: Bearing & Oil Seal Set . Installation & Support Subscribe to the RacingDiffs YouTube Channel to get installation tutorials and new updates — don’t forget to press the notification bell. OEM Part Numbers (Reference) 33141203806 / 33-14-12-03-806 33141203803 / 33-14-12-03-803 33141203804 / 33-14-12-03-804 33141203805 / 33-14-12-03-805 33141204153 / 33-14-12-04-153
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❤️ Love at first lock-up: –€90 on BMW LSD Conversion Sets. Faster bite, no one-wheel-peel. E46, E36, E90/E92, E60 in stock. DHL Express • Money-back. Offer ends Feb 14.
❤️ Love at first lock-up: –€90 on BMW LSD Conversion Sets. Faster bite, no one-wheel-peel. E46, E36, E90/E92, E60 in stock. DHL Express • Money-back. Offer ends Feb 14.
❤️ Love at first lock-up: –€90 on BMW LSD Conversion Sets. Faster bite, no one-wheel-peel. E46, E36, E90/E92, E60 in stock. DHL Express • Money-back. Offer ends Feb 14.
Why Settle for One-Wheel Spin? Upgrade your differential with RacingDiffs! Our LSD conversion kit eliminates slip and gives you real traction. Plus, it's risk-free with a 6-month warranty! 🏁
Why Settle for One-Wheel Spin? Upgrade your differential with RacingDiffs! Our LSD conversion kit eliminates slip and gives you real traction. Plus, it's risk-free with a 6-month warranty! 🏁
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