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Transmission Locked Up? Help

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Old Jul 25, 2016 | 01:46 PM
  #1  
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George's350z
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Default Transmission Locked Up? Help

So my car has been sitting at a body shop here in Orlando, FL for 3 weeks waiting for parts to come in. when parts arrived finally this morning they attempted to get the car in the body shop but the shifter was stuck. Keep in mind the car was shifting PERFECTLY FOR 4 MONTHS before this happened. When they finally go the car out of gear they heard a loud pop. the shifter got stuck in neutral. I can't put it in any gear at all and it stuck on some gear. You can see in the video how the wheel turns when i lift on the clutch pedal while in the neutral position. I looked through the slave cylinder boot to see if the slave cylinder is working properly and it is. Goes in and out as the clutch is depressed.

For my350z police out there: I tried to find a thread that would help me with no luck and I did my research. If you find the thread please refer me to it. Thank you!

Mods are:

08 350z HR
zspeed concentric slave cylinder 4months old
wilwood master cylinder 4 months old
SS Lines
Southbend stage 2 clutch 4 months old
JWT lightweight flywheel 4 months old

Video:

So is this a transmission fork problem?
This cant be gears locked up cause the car wasn't driven. It just sat.
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Old Jul 25, 2016 | 01:54 PM
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you don't have a fork. not sure where to tell you to start, i know that if it wont go in gear, the pushrod could be adjusted wrong.
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Old Jul 25, 2016 | 02:48 PM
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Originally Posted by travlee
you don't have a fork. not sure where to tell you to start, i know that if it wont go in gear, the pushrod could be adjusted wrong.
I'm talking about the shift forks and rods inside the transmission. Not the slave cylinder fork like the ones of the DE 350z's. As far as pushrod adjustment; the car was shifting fine before I dropped it off at the shop and 4 months before that. I don't think it is any adjustment issues either. But I will check it out when I get the car towed to my house tomorrow.
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Old Jul 25, 2016 | 02:51 PM
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Originally Posted by George's350z
I'm talking about the shift forks and rods inside the transmission. Not the slave cylinder fork like the ones of the DE 350z's. As far as pushrod adjustment; the car was shifting fine before I dropped it off at the shop and 4 months before that. I don't think it is any adjustment issues either. But I will check it out when I get the car towed to my house tomorrow.
gotcha. check the trans fluid and clutch fluid, this is definitely a weird one
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Old Jul 25, 2016 | 02:59 PM
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Originally Posted by travlee
gotcha. check the trans fluid and clutch fluid, this is definitely a weird one
I will tomorrow. Probably going to drop the tranny again but I'm getting used to it. Its not that bad. lol I'll keep this thread posted for anyone else who wants to help.. Thanks!
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Old Jul 26, 2016 | 10:23 AM
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Something is broken inside the trans, The clutch is working as you can hear it change when you let the pedal up. Looks like maybe a shift fork has broken.
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Old Jul 26, 2016 | 10:34 AM
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Originally Posted by ZSpeedPerformance
Something is broken inside the trans, The clutch is working as you can hear it change when you let the pedal up. Looks like maybe a shift fork has broken.

That's what I figured. Thank you for your input! Hopefully I'll get a chance to drop the transmission today.
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Old Mar 10, 2026 | 11:43 AM
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Trying to revive this thread. I have the exact same issue after installing my new clutch. Shifter appears to be in the neutral position but will only move right. Will not move forward or backward into any gears. Any suggestions are appreciated! Going to try and float the transmission back ~1/2” from the engine and see if I can get a gear.
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