BMW M LSD – E46 M3, E92 M3, E60 M5, M6, Z4M Upgrade

BMW M LSD – E46 M3, E92 M3, E60 M5, M6, Z4M Upgrade, RacingDiffs part no. RD1003m. It is a complete clutch-type limited slip differential unit that replaces the open or worn factory differential carrier.

Key Features

• Fully Forged Construction: All components, including the housing, are crafted from high-grade forged material for durability.
• Adjustable Lock Settings: Choose 3 distinct ramp angle positions to match your driving style: 30/30 – aggressive 2-way, perfect for drifting.
• 30/60: versatile 1.5-way, ideal for hill climb, rally, circuit, time attack, or newer drifters.
• 50/65: smooth locking, great for street and track days.
• Optimized for Performance: Includes 4 Molybdenum-ceramics clutch plates with a lifetime warranty; delivers reliable performance without noise or vibrations when using quality LSD oil (e.g.
• Precision Fit: Designed for BMW Motorsport models for a seamless fit and optimal performance.

Technical Specs

Installation Notes

• Adjustment shim set: required: To finish the swap you’ll need the correct carrier-adjustment shims to set preload and backlash.
• What shims do: Let you dial-in factory backlash, center the ring gear for a correct contact pattern, and eliminate whine, premature wear, and heat build-up.
• TIP: We stock complete shim packs in 0.1 mm increments so you can fine-tune without hunting OEM spacers.
• Watch before you wrench: Our ~8-minute installation video walks through pressing bearings, measuring backlash with a dial indicator, selecting shims, and checking contact with marking compound.

Fitment

• E36 M3 (S50B32)
• E46 M3
• E92 M3
• E28 M5, M535i
• E34 M5
• E39 M5
• E60 M5
• E24 M6
• E63 / E64 M6
• Z4 M

Specifications