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1993 Jeep Grand Cherokee with "Quadra Trac"
Hi Toyota,
This has a three position transfer lever as you described. I will look for that tag you described. Thanks, Brad On Fri, 12 Jun 2009 13:26:44 -0700 (PDT), in rec.autos.tech you wrote: >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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