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Unread 12-02-2010, 07:07 PM   #1
jeephog7713
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1981 CJ5 
 
Join Date: Jul 2010
Location: moyock, nc
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pops out of first gear

my t150 pops out of first gear only in four low and when is under a load or you get off the gas real fast its really makin me mad any help would be great

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Unread 12-02-2010, 07:30 PM   #2
rob777
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1983 CJ7 
 
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Prob bad synchros in tranny
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Unread 12-02-2010, 07:32 PM   #3
jeephog7713
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1981 CJ5 
 
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Location: moyock, nc
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fresh rebuild all new bearing and syncros
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Unread 12-02-2010, 07:34 PM   #4
jeephog7713
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would bad motor and trans mounts do it as in the motor twisting to much
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Unread 12-02-2010, 08:16 PM   #5
rob777
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I guess it could be something to do with it. Probably would be the transfer mount vs motor mount. If you still have leaf springs, check the tightness of rear ubolts as well, you could get slop there too. If they get real loose you start breaking u joints, yoke, or drive shaft binds. Might be an early sign. Another thing I always check after a good run is tranny/transfer case bolts. They can work their way loose and seperate some. Maybe they were not all put in tight enough after your rebuild.

If it's not any of that, well, then not all rebuilds come out as planned and hopefully you have a warranty or an extra weekend to look at it.
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Unread 12-02-2010, 08:27 PM   #6
jeepdaddy2000
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1971 CJ5 
 
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Body lifts also have a tendency to give transmission trouble if the body comes in contact with the shifter when wheeling.
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Unread 12-02-2010, 08:30 PM   #7
jeephog7713
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The body is clear from the shirred I'm going to go over as much as I can this weekend so any ideas will be great
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Unread 12-03-2010, 05:19 AM   #8
jeepdaddy2000
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This situation usually comes from the input/mainshaft moving, shift fork not fully engaging the gear, engagement collar installed backwards, or possibly a loose bull gear.

Bad pilot bushing, bad/wrong output bearing, a bad/wrong/missing snap ring, worn/loose shift fork.

You may want to pull the floorboards, shift into first, then carefully pop the trans lid and observe the placement of the first gear, check for any mainshaft movement, as well as inspect the shift fork for problems.
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Unread 12-03-2010, 05:46 PM   #9
white_2003
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sounds like a work out engagement dog on a slider gear
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