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4x4 transfer case?

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desertrat71

Post subject: 4x4 transfer case?

Posted: Tue Jan 25, 2011 8:03 pm

Joined: Sun Jul 19, 2009 7:49 pm
Posts: 46

Okay I have a question on my 1990 cherokee limited, I was pulling on a tree stump and had my transfer case in 4x4 lo and my auto trans in 1st. my rear tires both dug in and my front did not do any thing what make the front lock in? my axles are dana 30 front and dana 35 rear. my selector is 2x4 , 4x4 hi part time , 4x4 hi full time , nutral , 4x4 lo part time. any one have an Idea?

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N2Deep

Post subject: Re: 4x4 transfer case?

Posted: Tue Jan 25, 2011 9:02 pm

Joined: Fri Feb 11, 2005 10:22 pm
Posts: 234
Location: Mesquite

if your in 4lo and your front didn't do anything - You gotta problem or not enough power to turn the wheels

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Trukdj

Post subject: Re: 4x4 transfer case?

Posted: Wed Jan 26, 2011 8:06 pm

Joined: Wed Dec 06, 2006 9:44 pm
Posts: 348
Location: Las Vegas, NV.

On your front axel there is a round cylinder on the right side. There are vacuum lines that go to it from the transfer case. These lines are plastic and get brittle after a few years and break, or the diaphragm in the cannister goes bad. This is what locks the right axel to the left axel. If this doesn't work no 4X4. You can buy a new vacuum harness or you can find where it is broken and splice it with rubber vacuum hose. ( it may be broken in several places. The lines could also be plugged with dirt.
I removed my vacuum system and installed a cable system which is much better.
It's all about how much you want to spend. the rubber vacuum splice is the cheapest way to go.

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desertrat71

Post subject: Re: 4x4 transfer case?

Posted: Thu Jan 27, 2011 12:10 am

Joined: Sun Jul 19, 2009 7:49 pm
Posts: 46

I dont see a can on my front axle. I see the can on my dads 88 jeep commanche.

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Trukdj

Post subject: Re: 4x4 transfer case?

Posted: Thu Jan 27, 2011 6:53 am

Joined: Wed Dec 06, 2006 9:44 pm
Posts: 348
Location: Las Vegas, NV.

If you don't have a locking front axel then the problem is somewhere else. Like you said either in the transfer case or the front axel. Could be a broken chain in the transfer case or a broken front axel or something wrong with the diff.

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Justin

Post subject: Re: 4x4 transfer case?

Posted: Fri Jan 28, 2011 8:12 am

Joined: Mon Apr 19, 2004 9:55 am
Posts: 582
Location: Las Vegas

May try geting all four off the ground (jack stands under axles and extreme caution) and seeing what turns and what doesn't. If the xfer doesn't turn the driveshaft it's the xfer. If the driveshaft turns but not the wheels (one wheel for open dif) then its in the dif or axle.
Just my $00.02 adjusted for inflation.

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