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Issue with 3rd gear

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Old Apr 3, 2024 | 02:58 PM
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clay615
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4th Gear
 
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Default Issue with 3rd gear

I have a 07 base 6mt t56 stock clutch master and slave also stock shifter. The other day while driving I did a 50% throttle pull 1-2 and went to go to 3 and it went into gear but it revved to the moon, now my 3rd gear is acting like neutral. I don’t believe it’s the synchro because when the car is on and you try to slowly push it into gear with no clutch the rpms drop. But when you use clutch and put it into gear it just makes a rattling noise. All other gears work flawlessly any help is appreciated thank you.
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Old Apr 4, 2024 | 09:15 AM
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St. Jude Donor '08-'09-'10-'11-'12, '14-'15-'16-'17-'18
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Originally Posted by clay615
I have a 07 base 6mt t56 stock clutch master and slave also stock shifter. The other day while driving I did a 50% throttle pull 1-2 and went to go to 3 and it went into gear but it revved to the moon, now my 3rd gear is acting like neutral. I don’t believe it’s the synchro because when the car is on and you try to slowly push it into gear with no clutch the rpms drop. But when you use clutch and put it into gear it just makes a rattling noise. All other gears work flawlessly any help is appreciated thank you.
You have sheered off all the engagement tooth (where the synchronizer ring engages the gear) on the 3rd gear. It's not a common thing but we've seen some.....
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Old Apr 6, 2024 | 11:07 AM
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clay615
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4th Gear
 
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Originally Posted by Rick@RKT Performance
You have sheered off all the engagement tooth (where the synchronizer ring engages the gear) on the 3rd gear. It's not a common thing but we've seen some.....
I’m guessing that requires a rear end drop
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Old Apr 6, 2024 | 11:20 AM
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Rick@RKT Performance
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From: Frederick Maryland
St. Jude Donor '08-'09-'10-'11-'12, '14-'15-'16-'17-'18
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Yes, you have to disassemble the transmission to replace the 3rd gear.
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