Offroad Trailblazers and Envoys

Front Diff Problem?

Something not working right?

by wink » Wed Dec 28, 2011 12:34 pm

I recently added the AWD sleeve to the disconnect. Now with both tires off the ground, in 4HI, tires rotate opposite of each other, but drive shaft doesn't move at all.
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by fishsticks » Wed Dec 28, 2011 12:38 pm

Sounds like a ring gear issue. Any noise?
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by bartonmd » Wed Dec 28, 2011 12:42 pm

Tires rotating opposite of each other, but front drive shaft sitting still is how it should be (ETA this is what the sider gears do, and what your axle shafts are doing when you're running down the road with a disconnect in the SD box, instead of a slug)... Just like when you're in Park with the rear jacked up, and you can spin the rear tires opposite of each other... The ring/pinion won't move unless they're both going the same direction...

The big question is: When you rotate the drive shaft by hand, does either front rotate?

Or better yet, if you have only 1 front tire off the ground, rotating (with the other one on the ground, sitting still), does the front drive shaft turn?

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by wink » Wed Dec 28, 2011 1:02 pm

With driver side tire in the air, the drive shaft does "wiggle" with the tire.
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by bartonmd » Wed Dec 28, 2011 1:04 pm

wink wrote:With driver side tire in the air, the drive shaft does "wiggle" with the tire.


It wiggles when you rotate the tire, or it rotates back and forth, and forward for more prolonged time with the tire? If it actually moves with the tire, you're fine...

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by wink » Wed Dec 28, 2011 1:08 pm

That was a bad response. To clarify, driver side tire in the air, drive shaft rotates back and forth with the tire.
Now that I'm really thinking about it, it makes sense that its working right. I really need to start getting more sleep before playing with the truck.
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by bartonmd » Wed Dec 28, 2011 1:09 pm

Yep, it's working right...
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by fishsticks » Wed Dec 28, 2011 1:48 pm

Gah I read the OP wrong. Thought he said both wheels were going to same direction.

Stupid phone. :gimp:
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