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No power to rear wheels on awd VIDEO

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How is it that my rear is bad when I can turn my driveshaft and the rear wheels spin??? Whatever is going on is inside of my trans, hence the noise in the video when I move to driver side and put camera under the car and by transmission. I'm not saying any of you are wrong..I just don't understand why you say it's my rear diff...I'm leaning towards my center diff..has anyone experienced this???
:hmm:
 
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May also be that the teeth on the gears in the t case are gone. I had this happen once. Does it act as though the clutch is slipping when you try and drive it?? You can take the side plate off the t case easily and examine the gears.
 
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kchazz...YES!!! My 1st and 2nd slip a lil bit but once you hammer down on the gas it will take a sec, but it grabs and will snap your neck back and go! 3-5 do not slip though? I took my tcase off and inspected it by turning input and outputs and it felt good. I hear a bad center diff can cause a slip too so idk?
 
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Yeah, if the teeth in the t case were gone, youd have more slip in 3- 5th gears, which is the opposite of your situation. Id say that it could very likely be the center diff, but the only failure of the center diff that I have seen on the seven or so bad ones in my garage are where they basically gall and weld themselves together where the two shafts go into the housing and behave just like a center diff thats been welded. Im sure its also possible that the cross shaft has broken or that the teeth on the larger gear that the spiders ride on has lost its teeth in your case? Looks like you need to pull and open the transmission at this point.
 
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jtmcinder said:
The VC connects the input to the rear, not the front. AWDs that blow the center diff in the middle of a drag-race finish the run as RWD, not FWD.

Do the standard tests:

1) lift one front wheel and try to turn it with the car in gear: you shouldn't be able to ... if you can, then either the front or center diff is gone.

2) lift one rear wheel are try to turn it with the car in gear (and the parking brake off, of course): you shouldn't ... if you can, then either the rear or center is gone.

Note that these tests assume that you have not snapped an axle. If you aren't sure, check them all first.

When doing these tests, turn the wheel slowly but with some strength. There will be some slop, but if you can rotate the wheel more than 90 degrees, then the test was clearly failed. (Note to the confused: "failed" = wheel can be turned.)

If the car fails #1 but passes #2, it's the front diff.

If it fails both, it's the center.

If it passes #1 but fails #2, it's the rear.

- Jtoby
Click to expand...

Hope this helps.
 
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PieEyedPiper I hope what you posted is a correct way to tell. I trust you on this but here is what I found after doing this test.....It's my rear diff. If it matters, I DO NOT have the LSD rear. DSM FML!!! :banghead:
 
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I believe it's the rear diff as well. From the video I can tell...Normmaly with the rear raised and someone spinning a rear wheel the other wheel normally rotates the opposite direction as the wheel being spun. It looks like the Diff exploded and locked up the rear.
 
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