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Old 04-05-2012, 12:31 PM   #1
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what's best to run in?

Okay so whats the best to run in for your jeep while driving down the road. 2wd, 4wd high, 4wd low, or neutral? One of my buddys stays in 4wd in his cheroke. I have always left it in 2wd. What do you leave yours in?

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Old 04-05-2012, 12:47 PM   #2
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2wd

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Old 04-05-2012, 01:06 PM   #3
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Driving with perfect traction in anything but 2wd with a transfer case that you'd find stock in a Wrangler will cause excessive wear on the transfer case, and can quickly lead to its distruction, or the destruction of other drivetrain components.. Part time transfer cases will lock the front and rear output shafts and thus will turn at the same speed in 4hi or low.

When turning normally all 4 tires spin at different speeds, however when the front and rear output shafts are locked the front and rear tires on each side must spin at the same speed. An example being the front and rear drivers side tire would be forced to spin at the same speed, as well as the passenger side would have to spin at the same speed.

That all being said, your friend may have a full time 4wd option on his transfer case, which actually gives the transfer case its own differential, allowing all 4 tires to receive power, and spin independently of one another.
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Old 04-05-2012, 01:11 PM   #4
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^^ This ^^

You do not have a full time 4wd transfer case.
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Old 04-05-2012, 01:44 PM   #5
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always run in 2...
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Old 04-05-2012, 02:27 PM   #6
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Originally Posted by darkproximity View Post
Driving with perfect traction in anything but 2wd with a transfer case that you'd find stock in a Wrangler will cause excessive wear on the transfer case, and can quickly lead to its distruction, or the destruction of other drivetrain components.. Part time transfer cases will lock the front and rear output shafts and thus will turn at the same speed in 4hi or low.

When turning normally all 4 tires spin at different speeds, however when the front and rear output shafts are locked the front and rear tires on each side must spin at the same speed. An example being the front and rear drivers side tire would be forced to spin at the same speed, as well as the passenger side would have to spin at the same speed.

That all being said, your friend may have a full time 4wd option on his transfer case, which actually gives the transfer case its own differential, allowing all 4 tires to receive power, and spin independently of one another.
What this knowledgable person said! It's so bad to run in anything but 2wd on pavement it will destroy your t case real quick running 4wd on pavement. I'm sure there are some pics of what happens floating around the Internet
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Old 04-05-2012, 02:40 PM   #7
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"Best" is subjective. Even with full time 4WD, which I don't think Wrangler have ever had (not sure about that), you're going to take a hit on fuel economy.

The Grand Cherokee I traded in for my Wrangler had Selec-Trac, which was 2HI-4PART(HI)-4FULL(HI)-N-4PART(LO). Even with the full time option, I almost always kept it in 2WD.

Now they are all Quadra-Trac / Quadra-Drive, which is AWD. That's no fun at all.
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Old 04-05-2012, 02:44 PM   #8
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Alright. Idk if his car has a seperate diff. He drives a 200x jeep cheroke and leaves it in 4hi
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Old 04-05-2012, 02:47 PM   #9
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Well you might advise him to rethink that choice, if its not full time he will be replacing something soon enough.. Not to mention its bad on fuel economy, and there's no reason to unless you're not getting traction..
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Old 04-05-2012, 03:50 PM   #10
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Tell your buddy to read his owners manual. If he doesn't figure it out after that, well....I don't know. Darwin will settle it I guess.


Edit... ya better read yours too.
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Old 04-05-2012, 03:52 PM   #11
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4wd on dry pavement is cruise control for cool.. Lol
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Old 04-05-2012, 03:55 PM   #12
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I can't believe this was even a legitimate question....
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Old 04-05-2012, 04:01 PM   #13
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Old 04-05-2012, 04:03 PM   #14
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I can't believe this was even a legitimate question....
it will get asked again too sadly
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Old 04-05-2012, 04:04 PM   #15
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I can't believe this was even a legitimate question....
My thoughts exactly...
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Old 04-05-2012, 04:06 PM   #16
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Ive heard its good to engage 4Hi on occasion for several miles. But as posted above you are going to want to run in 2...
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Old 04-05-2012, 04:10 PM   #17
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Ive heard its good to engage 4Hi on occasion for several miles.
If you understood how your transfer case worked, you'd laugh at this recommendation. It holds absolutely zero weight.
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Old 04-05-2012, 06:17 PM   #18
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Yes tell your friend this will happen if he run in 4hi all the time! It's not a good idea!!! And btw this was found on google and it is NOT mine!
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Old 04-05-2012, 06:18 PM   #19
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Quote:
Originally Posted by Imped
I can't believe this was even a legitimate question....
Well it was to show my friend he woukd belive me. He is in 2wd now
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Old 04-05-2012, 06:29 PM   #20
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Well it was to show my friend he woukd belive me. He is in 2wd now
Good lol
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Old 04-05-2012, 07:32 PM   #21
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Running with the transfer case in neutral won't hurt anything either..

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Old 04-06-2012, 09:14 AM   #22
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The "best" would be to run in neutral... Saves gas!!!!!
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Old 04-06-2012, 09:15 AM   #23
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If you understood how your transfer case worked, you'd laugh at this recommendation. It holds absolutely zero weight.
I'm not sure the recommendation has anything to do with the transfer case. I think it is more to ensure the front differential internals get a regular lubrication coating. Otherwise a vehicle that only drove in 2WD for extended periods might find that front diff frozen when it is most needed.

But that would only be the case with a vehicle that has locking hubs (ie: Cherokees, Liberty, Grand Cherokee, Ford F-150, etc.). With those vehicles, occasionally engaging the 4WD on an appropriate surface is probably a good idea.

But Wranglers are always locked, so the front differential moves around even in 2WD. Still, it isn't a bad idea to check your 4WD system periodically to make sure it is working properly.
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Old 04-06-2012, 09:30 AM   #24
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Okay so whats the best to run in for your jeep while driving down the road. 2wd, 4wd high, 4wd low, or neutral? One of my buddys stays in 4wd in his cheroke. I have always left it in 2wd. What do you leave yours in?
I don't think the NEUTRAL option would get you very far! Unless rolling downhill....
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Old 04-06-2012, 09:53 AM   #25
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Definitley 2wd my friend.. 4wd (In a wrangler atleast) seems kinda jerky and well, just doesn't seem right for driving on the road. Plus you'd get waaaay better gas mileage staying in 2wd
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Old 04-06-2012, 09:56 AM   #26
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I'm not sure the recommendation has anything to do with the transfer case. I think it is more to ensure the front differential internals get a regular lubrication coating. Otherwise a vehicle that only drove in 2WD for extended periods might find that front diff frozen when it is most needed.

But that would only be the case with a vehicle that has locking hubs (ie: Cherokees, Liberty, Grand Cherokee, Ford F-150, etc.). With those vehicles, occasionally engaging the 4WD on an appropriate surface is probably a good idea.

But Wranglers are always locked, so the front differential moves around even in 2WD. Still, it isn't a bad idea to check your 4WD system periodically to make sure it is working properly.
So......it holds no weight.
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Old 04-06-2012, 04:59 PM   #27
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One of my buddys stays in 4wd in his cheroke. I have always left it in 2wd. What do you leave yours in?
Some Cherokees featured a selectable full-time 4WD capability. Those not so equipped face the same limitations as a Wrangler- no 4WD on dry pavement.
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Old 04-06-2012, 05:15 PM   #28
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Okay so whats the best to run in for your jeep while driving down the road. 2wd, 4wd high, 4wd low, or neutral? One of my buddys stays in 4wd in his cheroke. I have always left it in 2wd. What do you leave yours in?
lol see what your top speed is in 4lo and see how far you get in neutral.
Personally I like driving with the transfer case in neutral and my trans in neutral as well. i found its easier on tires.


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