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Author Topic: 4WD question  (Read 524 times)

Offline Gunslinger

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4WD question
« on: November 01, 2005, 08:15:50 PM »
So I got stuck in the mud today


pause for laughter....

really I just made a poor choice of crossing, I don't have a lift and only have ATs on it.

What I couldn't figure out was how to get the thing in 4WD low.  I though it was go to 4wdH on the xfer shift then drive then neutral then 4wL then drive again???? isn't that right?  It's been a while since I've left pavement

In addition while I was stuck only my front right and back left tires were moving........is this normal or should I take a look at some of the vacume lines going to the xfer case?

Either way the 3 week old mud was pretty fun and I got dirty as hell.
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Offline Dago

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4WD question
« Reply #1 on: November 01, 2005, 08:36:45 PM »
My transfer case shifts into 4lo when I am rolling.  

Without locking differentials, you can have just one wheel spinning on an axle.  All power goes to that side only, leaving the one with traction not moving.
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Offline dmf

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4WD question
« Reply #2 on: November 01, 2005, 09:02:04 PM »
It seems to me that in 4wd all the wheels shouold turn when you hit the gas, I know this much about 4wd from when I was little, my dad used to put his truck in 4wd low by placeing the shifter in N, and shifting the transfer case into 4 low, then he'd place the shifter in L and creep out of whatever he was stuck in, stop on solid ground, put the shifter nack in N, shift the transfer case back into 2 high, shift into drive and go on to wherever he was going. He taught me how to drive a 4wd, but I havent driven one since I was 16.
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Offline GtoRA2

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Re: 4WD question
« Reply #3 on: November 01, 2005, 09:16:59 PM »
Quote
Originally posted by Gunslinger
So I got stuck in the mud today


pause for laughter....

really I just made a poor choice of crossing, I don't have a lift and only have ATs on it.

What I couldn't figure out was how to get the thing in 4WD low.  I though it was go to 4wdH on the xfer shift then drive then neutral then 4wL then drive again???? isn't that right?  It's been a while since I've left pavement

In addition while I was stuck only my front right and back left tires were moving........is this normal or should I take a look at some of the vacume lines going to the xfer case?

Either way the 3 week old mud was pretty fun and I got dirty as hell.


Some transfer cases can be a real pain in the bellybutton to get it into 4 low. Was it grinding or just wouldn't go?

If it was grinding, try doing it while moving or spining the tires really slow. Same if it just wouldnt go. A bit of grinding is normal, they don't have syncros. Every 4by4 I have had would grind on ocasion,

One wheel in the front and one in the back spinning is normal unless you have lockers or limited slip differentials.

If it is stock you would only have limited slip in the back axle and that would be an option not standard.

It is possible but I would say not very probable that the shifter for the transfer case could have had its linkage bent in the accident.
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Offline Gunslinger

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4WD question
« Reply #4 on: November 01, 2005, 09:38:05 PM »
In reflection I think it was the fact that I wasn't actually rolling.  Once I got pulled out by my neighbor it went into 4L with ease.  I drove it in low the remaining 50ft to change in pavement to prevent getting stuck again and rendering further embarasment.

I've been reading about Posi lock and lockers tonite....some are expensive some arent but ~$300 an axle is just more than I'm willing to pay for something I rarely use right now.  I'd rather have a soft top/3" lift/33"XTs and 15x10.5" rims so lockers are low on the list.  


It was funny my neighbor asked how I got stuck

my answer:

"well I was on a test drive checking the brakes after replacing the rotors and shoes and driving through the mud just seemd like the right thing to do at the time"
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Offline Masherbrum

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Re: 4WD question
« Reply #5 on: November 01, 2005, 10:09:18 PM »
Quote
Originally posted by Gunslinger
So I got stuck in the mud today


pause for laughter....

really I just made a poor choice of crossing, I don't have a lift and only have ATs on it.

What I couldn't figure out was how to get the thing in 4WD low.  I though it was go to 4wdH on the xfer shift then drive then neutral then 4wL then drive again???? isn't that right?  It's been a while since I've left pavement

In addition while I was stuck only my front right and back left tires were moving........is this normal or should I take a look at some of the vacume lines going to the xfer case?

Either way the 3 week old mud was pretty fun and I got dirty as hell.


Using 4 Low in Mud will get you stuck. You need momentum (4Hi).  Lo is for rock clawling.  

Your tires were spinning because you have Open Diffs.  

Karaya
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Offline RightF00T

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4WD question
« Reply #6 on: November 01, 2005, 10:41:53 PM »
http://www.jeep.com/4x4/index.html

Mouse over Get Ready, then click on "See how Jeep 4x4 Systems Work".

Then click on Command-Trac.  I'm assuming you dont have the Rubicon.
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Offline Gunslinger

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Re: Re: 4WD question
« Reply #7 on: November 01, 2005, 10:55:14 PM »
Quote
Originally posted by Masherbrum
Using 4 Low in Mud will get you stuck. You need momentum (4Hi).  Lo is for rock clawling.  

Your tires were spinning because you have Open Diffs.  

Karaya


I was trying the low after I was stuck......the desperation kicked in.  It was short lived as I was only about 10 blocks from home.  Going into I realized I was in trouble after it was too late.  I did my best to just keep my momentum and not turn the wheel.

;)

Right no Rubi here.  My beast is a 93 YJ.  4.0L I6 auto tranny with stock suspension.
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Offline Sandman

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4WD question
« Reply #8 on: November 01, 2005, 10:55:37 PM »
Live and learn... sometimes you get stuck.

I went offroading on Sunday. Was doing some geocaching in the south end of Panamint Valley. I got on a road that I thought was a short cut. It looked fairly benign until I started transversing the flood plain. Deep narrow ruts. Lotta fun though.

I managed to break the front tow hook. I bent it on one rock and then it kept snagging other rocks. Finally had to just take the damn thing off. Cheap OEM hook anyway. Needed replacing. :)





I have to be careful... LSD in the back and no LSD in the front. I'd love to have lockers.
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Offline Holden McGroin

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4WD question
« Reply #9 on: November 01, 2005, 11:21:14 PM »
Quote
Originally posted by Sandman
I have to be careful... LSD in the back and no LSD in the front. I'd love to have lockers.


How can you possibly drive if you're doing acid in the back seat?
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Offline Sandman

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4WD question
« Reply #10 on: November 01, 2005, 11:39:31 PM »
Quote
Originally posted by Holden McGroin
How can you possibly drive if you're doing acid in the back seat?


The trails are easy to follow. ;)
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Offline lasersailor184

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4WD question
« Reply #11 on: November 01, 2005, 11:47:17 PM »
I do believe you need to actually move the car for the really low gear to kick in.

At least, that's the way it is with my Jeep.
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Offline GtoRA2

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4WD question
« Reply #12 on: November 01, 2005, 11:48:57 PM »
Quote
Originally posted by Holden McGroin
How can you possibly drive if you're doing acid in the back seat?


ROFL,  I just spilled coke all over!
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Offline Gunslinger

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4WD question
« Reply #13 on: November 02, 2005, 12:22:15 AM »
Quote
Originally posted by lasersailor184
I do believe you need to actually move the car for the really low gear to kick in.

At least, that's the way it is with my Jeep.


I'm pretty sure you are right.  The worst part is I think I got the inside more muddy than the out.
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Offline Ripsnort

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Re: 4WD question
« Reply #14 on: November 02, 2005, 08:49:20 AM »
Quote
Originally posted by Gunslinger


In addition while I was stuck only my front right and back left tires were moving........is this normal or should I take a look at some of the vacume lines going to the xfer case?

 


Normal. You don't have posi-traction.  Were you by chance slightly high-centered? Most of the stuck trucks I've seen have been high-centered.  Also, typically your best torque is in the mid to high RPM range, so as others mentioned, go 4W-high, and using lower gears (preferably 1st on an automatic, 2nd on manual shift), anything faster and you're going to bust something on your truck that may be hidden in the mud.
« Last Edit: November 02, 2005, 08:51:35 AM by Ripsnort »
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