Three-quarter front view of RacingDiffs 168mm LSD unit—adjustable ramp angles, forged housing and internals.

BMW small case LSD 168mm diagram of lock

BMW 168mm (small case) LSD | Clutch-type, Fully adjustable

Name: BMW 168mm (small case) LSD | Clutch-type, Fully adjustable
Brand: RacingDiffs
SKU: RD1001
Price: 1399.0 EUR
Availability: InStock

RD1001

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1.749,00€1.399,00€

BMW 168mm Limited Slip Differential (LSD) Unit — Elevate Your Performance

Unlock the full potential of your BMW with RacingDiffs’ BMW 168mm Limited Slip Differential (LSD) Unit. Engineered for drivers who demand performance, durability, and adaptability, this fully forged, adjustable LSD delivers unparalleled control and efficiency on street and track.

Unmatched Durability: Fully forged internals and housing (premium forged materials) provide exceptional strength and longevity under demanding conditions.

Customizable Performance: Three ramp-angle settings let you tailor lock behavior to your driving:

30/30 — aggressive 2-way, perfect for professional drifting.
30/60 — versatile 1.5-way for hill climb, rally, circuit, and time attack.
50/65 — smoother lock for daily use with occasional track days.

State-of-the-Art Clutch Pack (Lifetime Warranty): Equipped with four Molybdenum-ceramics clutch plates for reliable, heat-resistant performance—backed by a lifetime warranty.

Noise-Free Operation: With optimal preload and high-quality LSD oil (e.g., Ravenol Racing 75W-140), the unit runs without unwanted noise or vibration.

Features

Fully forged construction: Forged internals and forged housing for maximum strength and longevity.
Adjustable ramp settings: 30/30 (2-way), 30/60 (1.5-way), 50/65 (smooth lock).
4 moly-ceramic clutch plates: Consistent grip and heat resistance, lifetime warranty included.
Track & street ready: Tunable behavior for motorsport or spirited road use.
Optimized NVH: Proper preload and quality LSD oil ensure quiet, vibration-free operation.

Performance Benefits

Superior traction: Dramatically improves acceleration and corner-exit drive.
Enhanced stability: Greater control and predictability at the limit.
Versatile handling: Easily adapt lock characteristics to surface and driving style.
Durability under load: Forged architecture resists wear, heat, and shock loads.

Technical Specs / Installation Tips

Differential size	BMW 168 mm
Ramp options	30/30 (2-way), 30/60 (1.5-way), 50/65 (smooth lock)
Clutch pack	4 × molybdenum-ceramics clutch plates (lifetime warranty)
Oil recommendation	Ravenol Racing 75W-140 (or equivalent high-quality LSD oil)
Backlash target	0.06–0.08 mm on most BMW ring-and-pinion sets

Carrier-adjustment shims required: Needed to set preload and backlash correctly.
Shims let you: Dial factory backlash, center the ring gear for a clean contact pattern, and eliminate whine, heat build-up, and premature wear.
TIP: We stock shim packs in 0.1 mm increments to fine-tune preload and backlash without chasing OEM spacers.
Watch before you wrench: Our 8-minute video covers bearing pressing, backlash measurement (dial indicator), shim selection, and contact-pattern checks with marking compound.