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Old 10-28-2008, 07:24 PM   #1
Join Date: Oct 2008
Location: Fort Drum, NY
Posts: 388
new to 4wd

ok so i have a 4wd wrangler.. im an 88m (wheeled vehicle operator) in the army, and all my trucks are all time 4wd or 6wd.

ive been reading online on when to use the 2wd, 4wd hi, and 4wd lo ..

and every article i read says if you use the 4wd on hard dry roads is bad and puts stress in the transfer case.

when you drive on snow is an inch to a foot of snow considered soft? is icy cement considered hard? i dont get it.

i live on a military post, so the roads are smooth.. but they arent dry (started snowing today, yay! pt tomorrow morning in the snow!) looking outside theres about a foot or so of fresh snow on the streets. they do plow here daily, and when its bad more than once a day... but its usually once in the morning and once in the afternoon.

so its mostly slushy snow, ice , and salt mix im dealing with. you guys up north know what im talking about. after they plow theres slush everywhere and its really easy to lose it on turns. i was planning to use the 4wd hi so i wont fish tail as easily or spin out taking off. will this damage it because its a smooth road?

so now im worried about using 4wd hi...

whats the deal?


edit: oh and also, living on post, the road i take to and from work is 45mph.. i drive 40. thats as fast as she goes.
also, i drove in snow here before i deployed so i understand how to drive in snow in a fwd, ive just never done it in a 4wd.
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Old 10-28-2008, 07:40 PM   #2
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As long as you are not in 4Hi on a dry paved road you will be fine.

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Old 10-28-2008, 07:47 PM   #3
Join Date: Oct 2008
Location: Fort Drum, NY
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so a wet paved road is ok?

that means a slushy paved road should be more than ok
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Old 10-28-2008, 07:48 PM   #4
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Just remember, your Jeep isn't "full time". Use 4wd when you NEED it or for very short amounts to test something. Driving 300 feet on a dry street to check a u-joint install, etc, in 4hi isn't going to hurt anything.

Slip is key. Your 4x4 transfer case won't rotate the tires exactly at the same rate, so to use 4wd on hard surfaces is bad for the drive train, spefically the tranny/xfer case.

If you are on surfaces that won't allow for the wheels to slip, you'll damage (at first) and then destroy (long term) the drive train.
So, just use 2hi on all pavement and really dry/hard dirt trails.

You can drive in snow, ice, mud, rocks, etc with 4hi easily and 4 low if you want/need the torque grunt and ain't in a hurry.

Just use 4wd when you NEED it and you won't have anything to worry about.
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Old 10-28-2008, 08:27 PM   #5
Join Date: Oct 2008
Location: Fort Drum, NY
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Originally Posted by stevens243 View Post

Just use 4wd when you NEED it and you won't have anything to worry about.

gotcha . that sums it up for me. kinda common sense but i guess i needed to hear it. thanks..
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