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whats the difference between AWD & 4WH

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Old 07-01-2007, 03:25 AM
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Default whats the difference between AWD & 4WH

i have a 01 dakoda4x4 quad cab
it is a full time all wheel drive
selector has AWD, 4WH, 4WL

so whats really the difference between AWD and 4WH?
seems to have posi in the rear, do they all?
 
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Old 07-01-2007, 06:36 AM
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Default RE: whats the difference between AWD & 4WH

4wh is constantly sending power to wheels (more like 2 wheel with diffs unless locking ones.) AWD is like a back up 4wd. If you start spining the tire will kick in.
 
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Old 07-01-2007, 06:58 AM
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Default RE: whats the difference between AWD & 4WH

The difference is that 4wH locks the center differential. AWD unlocks the center differential and allows for a difference in output speeds of the front and rear driveshafts, allowing for turning on high traction surfaces without hopping, binding, or spinning a tire like you would in 4-high.
 
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Old 07-02-2007, 06:29 PM
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Default RE: whats the difference between AWD & 4WH

ORIGINAL: horatio102

The difference is that 4wH locks the center differential. AWD unlocks the center differential and allows for a difference in output speeds of the front and rear driveshafts, allowing for turning on high traction surfaces without hopping, binding, or spinning a tire like you would in 4-high.
Horatio, you are a knowledge stud.
 
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Old 07-13-2007, 06:13 PM
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Default RE: whats the difference between AWD & 4WH

i have a 2003 4.7 awd and have a 3.55 open( not-posi.) front and rear.
 
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Old 07-14-2007, 04:14 AM
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Default RE: whats the difference between AWD & 4WH

oh, didn't notice the OP's last question.

from my experience, no, most of them are open diffs with a small percentage being LSD instead.
 



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