BMW E30 Dual Differential Mount Conversion Kit

Upgrade your BMW E30’s drivetrain with our Dual Differential Mount Conversion Kit—engineered specifically to address rear cover cracking and load distribution issues common in high-power and V8-swapped E30s. This kit adds a secondary mounting point to your medium case differential, distributing stress more evenly and enhancing structural integrity, inspired by later BMW models and proven custom solutions.

  • Enhanced Load Distribution: Dual mount system reduces stress concentration, helping prevent rear cover cracking and extending differential lifespan under high torque conditions.
  • Direct Fit Installation: No welding required. Includes all necessary hardware for a straightforward, plug-and-play installation.

Kit Includes:

  • CNC-machined aluminum differential mount and spacer
  • Two 10.9 grade extended differential casing bolts
  • Heavy-duty, powder-coated mounting brackets and trunk plate
  • Complete installation hardware
  • Detailed installation instructions

Compatibility:

  • Fits all BMW E30 models with medium case differentials
  • Note: Not compatible with E36ti or standard Z3 models

Protect your E30’s differential from costly damage and improve reliability with a kit designed for serious enthusiasts and demanding builds.

Installation Tip: Apply blue Loctite to the bolts for enhanced security under all driving conditions.

Vehicle Compatibility

Brand Model Generation / Chassis Engine
BMW 3 SERIES E30 -
RacingDiffs

RacingDiffs

Founded in Belgium, RacingDiffs is a specialist developer of limited slip differential conversions and upgrades for popular rear-wheel-drive platforms. Their bolt-in LSD kits convert open differentials into performance units without a full housing swap — a cost-effective solution for track day and drift enthusiasts seeking better traction and balance.

Official page: racingdiffs.com

Dual Differential Mounting Kit for BMW E30 - Secondary mount conversion / Black

Brand: RacingDiffs Product id: 79207 MPN: RD7006
Availability: Ready to ship
252.41€
249.88€ Excl. VAT: 206.51€
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Tags: Default Category|Drivetrain and suspension||Default Category|Drivetrain and suspension|Differentials,

Brand Model Generation Engine
BMW 3 SERIES E30 -

RacingDiffs

Founded in Belgium, RacingDiffs is a specialist developer of limited slip differential conversions and upgrades for popular rear-wheel-drive platforms. Their bolt-in LSD kits convert open differentials into performance units without a full housing swap — a cost-effective solution for track day and drift enthusiasts seeking better traction and balance.

Official page: racingdiffs.com