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Unread 04-06-2011, 07:45 PM   #16
MLJeeper
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Are you sure the rear is tracking straight?

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Any video of the sound?
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Unread 04-06-2011, 09:33 PM   #17
yjluv
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Quote:
Lets say I am cursing down the street, if i take my foot off the gas and the jeep is still in gear it will rock front and back as if there were a lost of tension between the diff and the transmission.
If my jeep was doing this I'd be cursing down the street too!!
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Unread 04-06-2011, 10:57 PM   #18
MJMPC
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OP did you pull the back cover off and look at your new diff ? Does it have oil in it. Are the front and back gear ratios the same??
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Unread 04-06-2011, 11:11 PM   #19
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Quote:
Originally Posted by MJMPC View Post
OP did you pull the back cover off and look at your new diff ? Does it have oil in it. Are the front and back gear ratios the same??
if it didnt have any lube in it it probably would do a lot worse by now. differing ratios would make no difference in this situation.

OP when you say "back and forth" do you mean front-to-back or side-to-side? lockers (selectable that are on and autos) will often cause a little quirky side wiggle on acceleration and deceleration but usually nothing that sounds as bad as your situation.
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Unread 04-07-2011, 08:40 AM   #20
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Quote:
Originally Posted by Enriquegg34 View Post
same gear ratio, just that theres nothing absorbing the tightness of the rear
If this is the best you can explain it then here is my final guess on what's going on......

you have a rear lunchbox locker. Deal with it and adjust your driving accordingly or remove it and go back to spiders.

-If when it happens, it feels like the rear end is jerking you around, side to side, or pushing out around corners - Its the locker.

-If it happens when you let off the gas suddenly - Its the locker.

-If it happens when you accelerate around corners sometimes - Its the locker

the lunchbox locker is a very rudimentary system of springs vs force.



I am going to assume you only get the issue when you are on the gas or off the gas... never when braking.
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Unread 04-07-2011, 08:44 AM   #21
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Originally Posted by fratis View Post
differing ratios would make no difference in this situation.
In 4wd they absolutely would. the OP stated it was different gears when he posted. Did I miss where he said he was in 2wd?
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Unread 04-07-2011, 08:46 AM   #22
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Originally Posted by Enriquegg34 View Post
So no real fix?

There has to be some sort of stabilizing arm or shock...

Anyone know?

Enrique
you mention absorbing the shock a lot. If its the locker, then no. you have no options with out removing it
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Unread 04-07-2011, 10:40 AM   #23
Joe Dillard
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Due to the manner you try to explain things, I suggest that you get with some local folks in a Jeep Club in your area to see if they can determine what's going on.

When I lived in FL, I sometimes hungout with these folks. I suggest trying these folks: http://jeeptalk.net/ Jim, who helps run the board is a friend of mine. Tell him I sent you his way.
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Unread 04-07-2011, 05:25 PM   #24
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Quote:
Originally Posted by Poke View Post
In 4wd they absolutely would. the OP stated it was different gears when he posted. Did I miss where he said he was in 2wd?
i got 2wd from:
Quote:
Originally Posted by Enriquegg34 View Post
Lets say I am cursing down the street...
Quote:
Originally Posted by Enriquegg34 View Post
..same gear ratio...
if one were to have miss-matched gear ratios front-to-back and you tried to drive in 4wd it would bind and not allow you to move at all.
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Unread 04-08-2011, 03:03 PM   #25
Enriquegg34
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Quote:
Originally Posted by tonylax48
maybe he is getting axle wrap?
Yep...
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Unread 04-08-2011, 03:05 PM   #26
Enriquegg34
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Quote:
Originally Posted by MJMPC
OP did you pull the back cover off and look at your new diff ? Does it have oil in it. Are the front and back gear ratios the same??
Yes sir I did it at a friends shop and we checked it all and he filled it up.
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Unread 04-08-2011, 03:06 PM   #27
Enriquegg34
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Quote:
Originally Posted by Poke

If this is the best you can explain it then here is my final guess on what's going on......

you have a rear lunchbox locker. Deal with it and adjust your driving accordingly or remove it and go back to spiders.

-If when it happens, it feels like the rear end is jerking you around, side to side, or pushing out around corners - Its the locker.

-If it happens when you let off the gas suddenly - Its the locker.

-If it happens when you accelerate around corners sometimes - Its the locker

the lunchbox locker is a very rudimentary system of springs vs force.

I am going to assume you only get the issue when you are on the gas or off the gas... never when braking.
I did adjust my driving it does not bother me but this jeep is for my son and he makes it rock cause he's a teenager...... Tks for everyone's help.
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axle , differential , locker , rear , sahara

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