NISSAN 32611-VB100 5th Gear Synchronizer Ring

This genuine Nissan (OEM: 32611-VB100) synchronizer ring ensures smooth and precise 5th gear shifting in manual transmissions. The primary role of the synchronizer ring is to equalize the rotational speed of the mating gears via friction at the moment of shifting, preventing gear clash and grinding.

Technical Features and Operating Principle

Synchronizer rings are subjected to continuous mechanical and thermal stresses. Therefore, this genuine Nissan component is manufactured to strict tolerances from premium materials to ensure durability and dependable performance:

• Material Composition: High wear-resistant brass alloy or metal featuring a specialized friction lining, delivering optimal grip even in the presence of transmission gear oil.
• Design: Precision-engineered internal conical surface for effective friction torque transfer, along with accurately machined external dog teeth for seamless engagement with the synchronizer sleeve.
• Installation Position: Manual transmission internal assembly, 5th gear synchronizer unit.

Typical Symptoms of Wear or Failure

The synchronizer ring is a wear item. Over time and use, the following failure symptoms may occur:

• Grinding Noise: A metallic crunch or grind when engaging 5th gear due to the ring no longer synchronizing shaft speeds effectively.
• Difficult Shifting: Notable resistance or stiffness felt at the gear shift lever when selecting 5th gear.
• Gear Pop-Out: The transmission slips or pops out of 5th gear into neutral under acceleration or upon releasing the throttle.

When replacing the synchronizer ring, it is recommended to refresh the transmission fluid using oil that meets manufacturer specifications and viscosities, and to thoroughly inspect the condition of the related synchronizer slider sleeve and gear teeth.