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Unread 11-07-2013, 12:17 PM   #1
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1986 CJ7 
Join Date: Dec 2011
Location: clarksville, TN
Posts: 12
dana 30 4wd stuck

Hello all I have a 86 CJ with a dana 30 front. It rolls fine in 2wd but when I put it in 4wd high or low it wont budge any ideas? also I have very little experience with axels but I am eager to learn.

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Unread 11-07-2013, 12:38 PM   #2
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1984 CJ8 
Join Date: Jun 2013
Location: Denver, CO
Posts: 1,230
Sounds more like a TC problem than an axle problem... If you lock the front hubs and leave the TC in 2-HI, does the Jeep drive okay? If so, I would check the shifter linkage on the TC. If one of the pins comes out, odd things can happen.
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Unread 11-07-2013, 12:42 PM   #3
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1999 TJ Wrangler 
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Location: Classified, California
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Are the differentials the same ratio? I would check that first.
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Unread 11-07-2013, 02:20 PM   #4
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1978 CJ5 
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Verify that the TC is moving by pulling the front drive shaft and have someone watch the yoke. Move it a few inches. If it turns, drain the fluid from the front axle and remove the differential cover and check the gears.
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Unread 11-07-2013, 02:21 PM   #5
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1973 CJ5 
Join Date: Aug 2007
Location: South West Indiana
Posts: 11,095
Axles the same ratio, like addressed above, and I'd try it with the front hubs UNLOCKED...
If it moves with hubs UNLOCKED, you simply spin the differential and axle shafts, no harm, but that will tell you *IF* the front ring/pinion is locked up or not.
If it still doesn't want to move in 4x4 with the front unlocked, then the issue is with transfer or front pinion/ring gear...

You could also jack up the front, put T-case in 2WD, lock in the wheels and turn them, see if the front ring/pinion turns the drive shaft freely,
Then you would start looking at transfer case...
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