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Unread 01-31-2011, 08:34 AM   #1
MRK
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Wk Is the 2011 Quadra Drive 2 a 3 wheel or 4 wheel drive system?

1. Is the Quadra-Trac 1, Quadra-Trac 2 and Quadra Drive 2 for 2011 the same as the 2005-2010 systems?
2. Is the Quadra-Drive 2 electronic limited slip in the REAR ONLY or FRONT AND REAR. Jeeps website states both axles in one area and rear in another. I get different answers from three different dealers in my area.
Mike

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Unread 01-31-2011, 11:26 AM   #2
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Quote:
Originally Posted by MRK View Post
1. Is the Quadra-Trac 1, Quadra-Trac 2 and Quadra Drive 2 for 2011 the same as the 2005-2010 systems?
They aren't the same and the axles aren't the same. See this site for some details on the WK2:

http://wk2jeeps.com/wk2_tcases.htm

Unfortunately I haven't found anything conclusive on the axles, but it was mentioned in another thread that they are now sourced from ZF, not internal Chrylser "corporate" axles.

Quote:
2. Is the Quadra-Drive 2 electronic limited slip in the REAR ONLY or FRONT AND REAR. Jeeps website states both axles in one area and rear in another. I get different answers from three different dealers in my area.
Mike
It only has the rear ELSD, no front. It's my suspicion that the reason is they didn't have time to develop ELSD for both new ZF axles. You can read more details on it over at allpar's page on it:



Quote:
Quadra Drive II has a rear (and rumored front in the future) Electronic Limited-Slip Differential which detects tire slip and sends torque to tires with traction. As with Quadra Tac II, in some cases, the Jeep will anticipate low traction and proactively limit or eliminate slip.
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Unread 01-31-2011, 12:29 PM   #3
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Thanks for the info and links. Much appreciated.
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Unread 01-31-2011, 01:31 PM   #4
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Looks like you got what you want!! but i must bring this to question why do you ask? are you looking at buying one?
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Unread 02-01-2011, 07:03 AM   #5
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Originally Posted by smcginnis87 View Post
Looks like you got what you want!! but i must bring this to question why do you ask? are you looking at buying one?
I have a 2000 GC 6 cylinder Selec-Trac with 3 wheel drive thats used for mild snow, sand (relatively flat, but soft at the beach) and towing. Awesome vehicle, plus its never broken down and only needed a battery, tires, front rotors/pads, water pump and rear pads with 11 years and 88K miles. Only downside is poor gas mileage bad for the wallet and the environment.

I want a 2011 GC and Im ready to order but cant get what I want. I want a Mineral Gray Overland with V6 engine, Quadra Drive 2 and 20" wheels. I dont want the brown trim and the ugly steering wheel that feels awful when driving. And Im disappointed that the Quadra Drive 2 is 3 wheel drive. 11 years later I was hoping for a 4 wheel drive system.
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Unread 02-01-2011, 11:37 AM   #6
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Well it may not have a LSD in front but it will perform just the same i would think. But i guess i never known of a 3wheel drive system? But if you just want something new go for a WK like mine i have QD2 and it rocks... you can get them pretty cheep
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Unread 02-05-2011, 05:32 PM   #7
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This is the best 4Wd drive system you can get today. That puts power to ALL 4 wheels. Watch the video it breaks her down "barney style".

http://www.jeep.com/en/4x4/how_syste...uadra_drive_2/
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Unread 02-07-2011, 05:47 PM   #8
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Wait a minute here. What do you mean that the SelecTrac is "3 wheel drive"? Esplain Nao! I have a 04 GC with that transfer case. It BETTER be 4 wheel drive when its engaged!
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Unread 02-07-2011, 08:39 PM   #9
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I'm pretty sure selec-trac is "4-wheel drive" and not 3 wheel. When I have it in Full Time and I spin in the snow, all 4 wheels spins.
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Unread 02-08-2011, 03:50 AM   #10
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Quote:
Originally Posted by RageOfFury View Post
I'm pretty sure selec-trac is "4-wheel drive" and not 3 wheel. When I have it in Full Time and I spin in the snow, all 4 wheels spins.
This is correct but its not "mechanical" like the good old days it's computer controled and if the computer makes the right call all four wheels will spin. In mechanical four wheel (no computer) guaranteed all our wheels spin until something breaks. 1979 was the last (no thanks to the EPA) for civilian vehicles. The Military HMMWV's are like the 1979 'Full Time" four wheel drive where all fours are engaged when you move the manual lever to "lock" no computers involved just straight mechanical.

Your Slect Trac (I had one in my '99 Grand Cherokee Laredo) engages all four wheels but the computer tells it when to do so (after you put the lever in), it also allows the inside wheels (while going around a turn) to slip at a different speed (they put the lever in to help save gas). Where the HMMWV's do not therefore they are only for off road use so the soft ground allows the inside wheels to slip. The WK2's with Quadra-trac and Quadra-drive are as good as your "Slect trac" if not better due to the computer. I believe the best of today thats why own one.
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Unread 02-08-2011, 07:38 PM   #11
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Quote:
Originally Posted by MRK View Post
I have a 2000 GC 6 cylinder Selec-Trac with 3 wheel drive thats used for mild snow, sand (relatively flat, but soft at the beach) and towing. Awesome vehicle, plus its never broken down and only needed a battery, tires, front rotors/pads, water pump and rear pads with 11 years and 88K miles. Only downside is poor gas mileage bad for the wallet and the environment.

I want a 2011 GC and Im ready to order but cant get what I want. I want a Mineral Gray Overland with V6 engine, Quadra Drive 2 and 20" wheels. I dont want the brown trim and the ugly steering wheel that feels awful when driving. And Im disappointed that the Quadra Drive 2 is 3 wheel drive. 11 years later I was hoping for a 4 wheel drive system.
Unless you are going to do heavy rock crawling the new system set up is very impressive. With the traction control you do not need a front locker. Once you learn how to drive the system you will realize how awesome it is. The ride height control is great. I worry about the reliability of the system but have played with mine and it is a blast. In the Overland 4wd I believe the Qtrack2 is standard, at least on mine it was.
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Unread 02-08-2011, 07:39 PM   #12
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Quadra-Drive II is standard on the Overland V8 in Canada.
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Unread 02-09-2011, 06:37 AM   #13
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Brake Traction Control is useful for slow speed rough terrain and not useful for typical snow, sand and mud. See link that explains this direct from chrysler engineers. ttp://blog.chryslerllc.com/blog.do?p=entry&id=270

Partial quote from website: "There are times when controlling how fast the wheels spin may not be desirable for driving conditions such as mud or deep snow. In this case, pushing the ESC button once (in 4wd high range) will disable the brake and engine portions of traction control that control how fast the wheels are allowed to spin but leaves BLD on. In 4wd low range, only BLD functions so there is no need to turn off traction control. Just to get this out of the way; from the Jeep perspective, BLD is not a substitute for locking differentials. It is a means to greatly expand the off road capability of vehicles that were not purchased with or do not offer locking differentials."
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Unread 02-09-2011, 07:54 AM   #14
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Originally Posted by mc22958 View Post
Unless you are going to do heavy rock crawling the new system set up is very impressive. With the traction control you do not need a front locker.
I assume you mean the system ISNT impressive as the systems advantage is for rock crawling.
Jeep survey states only 10% of owners go off road and only a certain percentage of those do rock crawling. So, for the rest of us, the system is meaningless.
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Unread 02-09-2011, 08:52 AM   #15
MRK
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Originally Posted by KDOG2008 View Post
Wait a minute here. What do you mean that the SelecTrac is "3 wheel drive"? Esplain Nao! I have a 04 GC with that transfer case. It BETTER be 4 wheel drive when its engaged!
Did you order your GC with a Trac-Lok rear? If not - 2 WD.

Quote:
Originally Posted by RageOfFury View Post
I'm pretty sure selec-trac is "4-wheel drive" and not 3 wheel. When I have it in Full Time and I spin in the snow, all 4 wheels spins.
You probably have Quadra Drive 2 with limited slip in front and rear diffs - 4 Wheel Drive.
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