The SYN-CD405 3rd gear carbon synchro G35/350Z/G37/370Z (R31/CD/JK) is a carbon-lined 3rd-gear synchro from Synchrotech, engineered for Nissan transmissions. Carbon friction material grips faster and wears longer than factory brass, delivering smoother, more consistent shifts under hard use — on the street, strip, or track.

Why upgrade to carbon synchros:

• Faster, smoother engagement and reduced grind
• Superior heat and wear resistance vs. OEM brass
• Ideal for high-horsepower, high-RPM and track use
• Direct-fit replacement — no transmission modification required

Fitment:

• R31/CD/JK Nissan transmissions

Replaces OEM part number: 32620-CD405

Backed by Synchrotech quality and shipped fast from Speedzone Performance.