Terra Firma Automotive supplies genuine Nissan differential bearings built to withstand the high torque and stress of the twin-turbo Z32. This rear final drive differential side bearing is the exact OEM unit that supports the side gears inside the R200 limited-slip differential. Precision-manufactured to Nissan’s strict specifications with the correct load rating, tolerance, and durability required for the VG30DETT powertrain, it maintains proper gear alignment and smooth operation under boost and aggressive driving conditions.
These side bearings endure significant lateral forces in twin-turbo applications. When they wear, drivers often notice increased differential noise, vibration, whining under load, or uneven power delivery. This authentic replacement restores smooth rotation, correct preload, and quiet operation while protecting the ring and pinion gears from accelerated wear.
At Terra Firma Automotive we focus on these critical high-load bearings that are essential for a strong and reliable differential rebuild. Whether you are fully rebuilding the R200 differential on your high-horsepower twin-turbo, refreshing bearings during a driveline service, or performing a complete rear-end restoration on your 1989–1996 Fairlady Z or 1990–1996 300ZX, this side bearing helps return the differential to factory-level performance and durability.
- 2 Required
- Fits 38440 Location
- Genuine Nissan OEM rear differential side bearing for Twin Turbo (Part Number 40211-50000)
- Direct fit for VG30DETT R200 limited-slip differential
- High-load precision bearing designed for boosted applications
- Restores smooth, quiet differential operation
- Essential during differential rebuilds or bearing refresh
- Helps eliminate noise and extend gear life
- Sold individually (2 required per differential)
- USDM 300ZX (Z32): 1990–1996 (VG30DETT – Twin Turbo only)
- JDM Fairlady Z (Z32): 1989–1996 (VG30DETT – Twin Turbo only)
- Engine Compatibility: Fits VG30DETT engines (Twin-Turbo only)
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