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Synchrotech Carbon Synchros G35/350z/G37/370z (R31/CD/JK) Full set 1-6 gears
Synchrotech carbon synchros for 350z/G35/370/G37/Q60. R31/CD/JK.

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Pre order only! ETA: MAY
List Price: $542.00
Price $426.00
Preorder SALE PRICE $359.00

Availability:: Pre-Order

Select 5th/6th gear synchro option*:


Synchrotech Carbon Synchros

New product for the R31/CD/JK Nissan transmission!

Pre order only! ETA: May
If you are not okay with the wait time, please do not order. Once your order is placed, No cancellations,refunds or exchanges of any kind will be available. If you have any questions, please reach out prior to placing an order.

This is special pre order pricing. We have 1500!!! synchros coming in and we would like to start pre orders now to help cover the cost. Once they arrive, this special pricing is no longer available.

Carbon synchros dramatically improve shifting performance and feel. They replace the weak factory synchros, which are notorious for causing grinding and lock out during high rpm shifting.

These carbon synchros replace the following OEM synchros. It is recommended to check part numbers in order to confirm fitment. Early R31 transmissions will utilize part number 32604-CD105 for 5th/6th gear synchros. Later transmissions will use part number 32604-5X00A for 5th/6th gear synchros.

  • OEM 1st gear synchro: 32620-CD401 (Triple cone)
  • OEM 2nd gear synchro: 32620-CD008 (Triple cone)
  • OEM 3rd gear synchro: 32620-CD405 (Triple cone)
  • OEM 4th gear synchro: 32620-CD01B (Double cone)
  • Early OEM 5th/6th gear synchro- 32604-CD105 (Single cone)
  • Late OEM 5th/6th gear synchro- 32604-5X00A (Single cone)

    !!We are working on a full application list but you can also use the OEM part numbers to check fitment on your vehicle. Just use a oem Nissan parts website where you can enter your VIN. Then enter each part number in to check fitment. !!
Early 5th/6th gear synchro
  • 09/2004'-2008' 350z
  • 09/2004'-2008' G35
  • 2009'-09/2012' 370z
  • 2008'- 03/2013' G37
Late 5th/6th gear synchro
  • 09/2012'+ 370z
  • 03/2013'-15' G37/Q60

A full OEM synchro kit would cost over $989. This kit is a major upgrade, at a fraction of the cost!!!

Synchrotech Pro Series Carbon Synchros have a full carbon composite lining. The carbon composite material acts as a braking material during gear engagement. This allows for quicker and more precise shifting and prolongs the life of the synchro sleeve and gear engagement teeth.
  • 6 Synchrotech Carbon Synchros (Gears 1st-6th)
  • R31/CD/JK Nissan transmissions
  • 350z
  • 370z
  • G35
  • G37
  • Q60 (3.7)

Professional installation is highly recommended, but DIY installation is also possible. Research to see if this is something that you feel comfortable taking on. There are YouTube videos that can be used for reference of DIY synchro installation into the R31 transmission.

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