Terra Firma Automotive supplies genuine Nissan selective snap rings that allow precise input shaft end play adjustment during transmission rebuilds. This 1.89 mm main drive snap ring is the exact OEM retaining ring used to securely locate the input shaft bearing. Precision-manufactured to Nissan’s specified thickness and material strength, it prevents axial movement while maintaining the exact clearance Nissan engineered for smooth, quiet operation and long bearing life.

Input shaft end play must be set within a very tight tolerance. The wrong snap ring thickness can cause excessive play (leading to noise and wear) or binding (leading to overheating and premature failure). This 1.89 mm version is one of the thinner options in the selective range, giving builders the ability to fine-tune clearance for a perfect factory-spec setup.

At Terra Firma Automotive we stock the complete range of these selective main drive snap rings because they are critical for a professional-quality transmission rebuild. Whether you are overhauling a high-mileage twin-turbo gearbox, refreshing bearings on a naturally aspirated model, or performing a full transmission restoration on your 1989–1996 Fairlady Z or 1990–1996 300ZX, this 1.89 mm snap ring helps achieve precise tolerances and reliable performance.

 

• Fits 32204+B Location
• Selective fit for input shaft bearing end play adjustment
• Hardened steel for secure long-term retention
• Direct fit for all Z32 manual transmissions
• Essential during any complete transmission disassembly and rebuild
• Helps eliminate input shaft noise and bearing wear
• Sold individually – measure existing play to select correct thickness
• USDM 300ZX (Z32): 1990–1996 (VG30DE & VG30DETT – NA or TT)
• JDM Fairlady Z (Z32): 1989–1996 (VG30DE & VG30DETT – NA or TT)
• Engine Compatibility: Fits all VG30DE and VG30DETT engines with manual transmission