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1993 Jeep Grand Cherokee with "Quadra Trac"
Hi,
I recently bought a 1993 Jeep Grand Cherokee with "Quadra Trac" (4 wheel drive system). I read the OM, but did not find anything regarding putting this vehicle into two wheel drive. Note: There is another version (not mine) called "Select Trac" that allows you to set two wheel drive. I have to assume that I have no control over two or four wheel drive, which means this is an "automatic" system. I am aware of the display that shows two or four wheel drive status, but it seems to be in four wheel drive much of the time, when it really isn't needed. Thanks in advance, Brad Before you type your password, credit card number, etc., be sure there is no active keystroke logger (spyware) in your PC. |
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1993 Jeep Grand Cherokee with "Quadra Trac"
On Jun 12, 7:42*am, (Brad) wrote:
> Hi, > > * *I recently bought a 1993 Jeep Grand Cherokee with "Quadra Trac" (4 wheel > drive system). *I read the OM, but did not find anything regarding putting > this vehicle into two wheel drive. * Note: *There is another version (not > mine) called "Select Trac" that allows you to set two wheel drive. > > * *I have to assume that I have no control over two or four wheel drive, which > means this is an "automatic" system. *I am aware of the display that shows > two or four wheel drive status, but it seems to be in four wheel drive much of > the time, when it really isn't needed. > > * * * * * * * * * * * * * Thanks in advance, *Brad > > * Before you type your password, credit card number, etc., > *be sure there is no active keystroke logger (spyware) in your PC. I assume you have the 3 position lever for full time high, neutral, and full time low. The original Jeep ZJs (93 to 98 body style) had many variations of transfercase / differential combo. You can look at the rear vertical surface of your transfer case and you'll find a silver and red circular tag that will say New Process (possibly New Venture) and then a three digit number like 249. This is the best way to start your quest for info on Jeep 4WD systems. For sure if you have Quadra-Trac I (not called "I" until "II" came out) then you have a viscous coupling that helps push the front axle all the time. If there is significant fron/rear differential in speed then it will attempt to grab more solidly. It is there to allow normal around town full time 4WD driving without the severe binding of a conventional transfer case. The drawback is that it isn't particularly well suited for serious offroading. Later versions incorporated a gear lock in 4WD low that would bypass the viscous slippage for maximum pulling power. Toyota MDT in MO |
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