Quadatrac Info and question - JeepForum.com
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post #1 of 3 Old 09-11-2002, 09:45 AM Thread Starter
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Quadatrac Info and question

Ok, as you know from previous postings, I have the TH400 with quadatrac unit.

What is the gearing of the transfer case anyhow ?

Also, I know quadatrac is full time, and equivlent to 4LOW is "emergency drive" on the quad. Which is activated from the glove box.

But on on my jeep, I also have a lever on the lower right drivers side floor. I was told that this was "an extra low gear". Anyone really know information about this "option".

Also, anyone know any good bone yards where I can get a replacement lever and bracket, since my are rusted together, and unfixable.



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post #2 of 3 Old 09-11-2002, 05:55 PM
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The ratio of the qtrac is 2.57:1 in low range (lever on floor). You have a misunderstanding of the lock though. Qtrac is a fulltime case which has a limited slip in the transfer case. Without this slip your transfer case would bind as the front and rear driveshaft don't always turn at the same speed, like when you're turning a corner. The "emergency drive" locks this limited slip so that the front and rear driveshafts turn at the same speed even though the front are rear axles don't want to. That's why it's called emergency drive. It should only be engaged on surfaces where slippage at the tire to ground contact is allowable. If there's no slippage there your tcase or other parts will break. That lever on the floor is your low range. It works whether the emergency drive is activated or not.
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post #3 of 3 Old 09-11-2002, 06:30 PM Thread Starter
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Again, you have my thanks. Never had a "quad" Jeep before, and new to me.

Thanks for the answers and info.

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