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BMW LSD Opening Tool for M3, M4, M5, M6 | Essential for M Clunk Repair
RD3056
109,00€99,00€
BMW LSD Opening Tool for Motorsport Differentials
Essential Tool for M Clunk Repair and LSD Rebuilds
Designed specifically for BMW Motorsport limited slip differentials, this opening tool allows safe and precise disassembly of LSD units used in a wide range of BMW M models.
Whether you are repairing the well-known M clunk or performing a complete differential rebuild, this tool is essential for opening the differential correctly without damaging the housing or collar.
Compatible BMW Models
- BMW E46 M3 (2005–2006, CSL)
- BMW E9X M3
- BMW E60 M5
- BMW E63 / E64 M6
- BMW Z4 M
- All F-Chassis M models: M2, M3, M4, M5, M6
Why You Need This Tool
BMW Motorsport differentials use a specific 6-point collar opposite the crown gear, which cannot be safely opened using improvised tools.
This opening tool is specially designed to engage the collar correctly, allowing safe removal during differential service, clutch replacement, preload adjustment and M clunk repair.
Key Features
- Specialized 6-point design – precisely matches the BMW Motorsport LSD collar.
- Counter-thread operation – designed for clockwise rotation when unscrewing.
- Precision fit – reduces risk of damaging the collar or housing.
- Durable construction – built for repeated professional workshop use.
- Essential for LSD rebuilds – ideal for installing RacingDiffs rebuild packs and servicing internal components.
Important Operating Note
This tool works on a counter-thread mechanism, which means the collar must be turned clockwise to unscrew.
Using the wrong direction can damage the differential collar, so proper use is critical.
Installation Guide
For correct operation, follow our detailed video instructions: BMW Differential Video Gallery
This tool is required for accessing internal components when installing RacingDiffs rebuild packs and correcting M clunk issues.
Why Choose RacingDiffs
- Precision engineering – manufactured to exact BMW Motorsport LSD specifications.
- Workshop-grade durability – built to withstand repeated rebuilds and servicing.
- Proven effectiveness – trusted by BMW specialists and performance enthusiasts.
- Essential for proper differential service – simplifies opening and rebuilding Motorsport LSD units.
