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-   -   Occasional slip out of 4th gear (https://6066gmcclub.com/showthread.php?t=50980)

Robert B. November 9th, 2020 05:42 PM

Occasional slip out of 4th gear
 
63 GMC 3/4t, 305E V6, 4-wheel drive, 4 on the floor, 511 front and rear (75k miles). On occasion, at cruise speed, the stick pops out of 4th gear to neutral. Any recommendations regarding diagnosis and fix? Thanks in advance guys!


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BillT November 11th, 2020 10:05 PM

Re: Occasional slip out of 4th gear
 
Usually a sign of a bad Synchro.

Robert B. November 11th, 2020 10:09 PM

Re: Occasional slip out of 4th gear
 
Super, thought that was a possibility, thanks Bill. Next level maintenance for me[emoji23]


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