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My gearbox grinds when shifting into 5th gear with a cold engine. I read that its a common issue. Can the synchro be replaced? A new gearbox from Nissan is
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10-29-2020, 09:07 AM
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#1 (permalink) |
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Enthusiast Member
Join Date: Jan 2018
Location: Netherlands
Posts: 280
Drives: 2010 370z MB 6MT
Rep Power: 3786   |
Are gearbox synchro's replaceable?
My gearbox grinds when shifting into 5th gear with a cold engine. I read that its a common issue.
Can the synchro be replaced? A new gearbox from Nissan is over 5.000 usd in my country and used gearboxes are not available, or available at 2.500-3.000 usd. Ive read many people received new gearboxes under warranty, but car is from 2010 so no chance there. Thank you for sharing your knowledge! Sent from my SM-G973F using Tapatalk
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10-29-2020, 09:11 AM
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#2 (permalink) |
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A True Z Fanatic
Join Date: Mar 2011
Location: Austin, TX
Age: 43
Posts: 36,449
Drives: 11 Z34, 98 E36 M3
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A competent transmission specialist should be able to replace the synchros for you without issue.
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 2011 370Z 6MT Sport Gun Metallic | ARC | CJM | Ecutek | FI | Fujimura | R2C | SPL | Stillen | TWM | Z1 | ZSpeed | |
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11-03-2020, 01:54 PM
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#3 (permalink) |
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Enthusiast Member
Join Date: Jan 2018
Location: Netherlands
Posts: 280
Drives: 2010 370z MB 6MT
Rep Power: 3786 |
Thank you. I have found a shop which indicates €400 for replacing the 5th gear synchro. Sounds good to me, so will drop the gearbox off at the end of the month.
Sent from my SM-G973F using Tapatalk
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11-03-2020, 02:03 PM
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#4 (permalink) |
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Premium Member
 
Join Date: Nov 2010
Location: South Arkansas
Posts: 8,435
Drives: 2014 Challenger
Rep Power: 324197 |
If you are going to disassemble most of the transmission to replace one synchro, I'd look into replacing all the synchros and any other parts that may have worn. Ie, go ahead and rebuild it. YMMV
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11-03-2020, 02:22 PM
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#5 (permalink) |
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Enthusiast Member
Join Date: Jan 2018
Location: Netherlands
Posts: 280
Drives: 2010 370z MB 6MT
Rep Power: 3786 |
Thanks for the advice. Yes, all bearings and synchros will be inspected when its all dissambled.
Sent from my SM-G973F using Tapatalk
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