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t56 not shiftng into 5th?

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Old 04-14-2016, 10:17 AM
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Default t56 not shiftng into 5th?

hello, I am having shifting issues with my t56 it is 1998 trans am with 140k miles, it sometimes has trouble shifting into 1-3 when the trans is cold but after 2min of driving 1-3 work great is that something serious? ok the real problem during WOT it doesn't like to shift into 4 but if you shift slowly 4 works, but 5th doesn't work at all it just grinds at any rpm range, and six is also fine. So my question is, is this a synchro issue or possibly something else, I just bought a bare rebuilt transmission, so I would like to make sure its not an issue with something else before I install. Thank you in advance!
Old 04-17-2016, 08:24 AM
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Sounds like you need new synchronizer blocker rings. Have you ever power-shifted/missed those gears?



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