Nissan Fairlady/300ZX Z32 Rear Final Drive Side Bearing Shim 2.55mm (Twin Turbo)

Terra Firma Automotive supplies genuine Nissan differential adjustment shims that allow precise control during R200 limited-slip differential assembly on twin-turbo Z32s. This 2.55 mm side bearing shim is the exact OEM selective spacer used to adjust side bearing preload and side gear clearance. Precision-ground to Nissan’s exact thickness tolerance, it serves as a thicker option in the selective series, helping achieve the ideal internal setup for smooth rotation and optimal gear mesh under the high torque demands of the VG30DETT.

Proper side bearing preload directly affects differential noise, heat management, and longevity. The wrong shim thickness can cause excessive play, vibration, or binding. This authentic 2.55 mm shim gives builders the flexibility to fine-tune the assembly for factory-correct tolerances, resulting in quieter operation and extended life of the ring and pinion set.

At Terra Firma Automotive we maintain the complete range of these selective shims because they are crucial for achieving professional-level differential rebuilds. Whether you are rebuilding a high-horsepower twin-turbo rear end, replacing worn bearings, or performing a full differential restoration on your 1989–1996 Fairlady Z or 1990–1996 300ZX, this 2.55 mm side bearing shim helps ensure precise geometry and reliable performance.

• 2 Required
• Precise thickness: 2.55 mm
• Selective fit for VG30DETT Twin Turbo R200 differential
• Critical for proper side bearing preload and alignment
• Helps eliminate noise and extend differential life
• Essential during differential rebuilds or bearing service
• Sold individually (measure existing setup to select correct thickness)
• 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)