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  #1  
Old 09-16-2011, 03:15 PM
bigpav7 bigpav7 is offline
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QT II and tire wear

I've read a whole bunch of conflicting information on how a QT II works under normal driving. Some sites state that it's 100% rear until slippage is detected. Others state its 60-40 or 50-50. Anyone know for sure? My tires are wearing in a weird pattern and I want to shift the ones with the most wear to the front if the system is in fact 100% rear. Thanks in advance.
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Old 09-16-2011, 04:00 PM
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My Understanding is that it is an all wheel drive system. I rotate my MTs every 4000 miles and get an allignment twice a year. Tires are wearing normal. Can you give more insight or a pic on the unusual wear on yours?
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Old 09-16-2011, 04:10 PM
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I haven't heard of any uneven tire wear attributed to the 4x4 system, regardless of which transfer case you have. Its probably because of an alignment issue or tire balance issue.
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Old 09-16-2011, 04:37 PM
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Quote:
Originally Posted by bigpav7 View Post
I've read a whole bunch of conflicting information on how a QT II works under normal driving. Some sites state that it's 100% rear until slippage is detected. Others state its 60-40 or 50-50. Anyone know for sure? My tires are wearing in a weird pattern and I want to shift the ones with the most wear to the front if the system is in fact 100% rear. Thanks in advance.
QTII is is AWD with close to 50-50 front and rear split.

From the Jeep website:

Quadra-Trac II®

This active full-time system functions in all-wheel-drive until additional traction is needed, then reacts by electronically engaging the clutch pack to transfer up to 100% of the torque to either axle. This system also features 2.72:1 LOW-RANGE and NEUTRAL.
http://www.jeep.com/en/4x4/how_systems_work/quadra_trac_2/


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Old 09-16-2011, 07:55 PM
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Your tire wear is not from the drive system and it is pretty much an even split. I have my tires rotated every 6k miles just move them front to back no staggering needed with AWD. You don't need an alignment twice a year either unless you have issues. My alignment is almost two years old and that includes a whole lot of wheeling I do as well and my tires are all wearing the same just perfect.
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Old 09-17-2011, 12:18 AM
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here's the thing, my RR tire has substantially less thread the the other 3. The LR tire is the opposite with the most thread. The two fronts are more or less the same. Now I bought the truck with 14K miles and one of the oil changes was done by the dealer, so I would assume the tires got rotated at least once. Still hard to explain why one tire has less and one more thread than the other two. Any thoughts?
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