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Old 09-26-2011, 02:54 PM   #1
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HELP! drivetrain bind????

ok I recently traded a motorcycle for a 98 wrangler SE (4cyl 5 speed, 235/75-15's, no lift) All Stock (or so i think) when i put the jeep in 4-low and move the it around in my driveway (concrete) it will bind up pretty bad when i'm near or at full lock steering either direction. it binds enough to stop the jeep from rolling on a slooped driveway and then will actually "pop" and then moved past this bind and re-bind... seems to be really bad on something so i didn't try it again....is this just the front axle u-joints binding and is "normal" when they are in 4-lo and have good traction? or could it be that (as a friend of mine thinks) that maybe someone changed an axle at some point with a different gear ratio that is causing it to bind up (tires turning at different rates?

or just u joints are in bad shape and need to be replaced? I'm planning on going through this who drivetrain soon with new "stock" parts, so i am looking for thoughts and ideas as to what could be the issue.

Thanks for any and all help
Nick

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Old 09-26-2011, 02:58 PM   #2
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you're likely fine, just stop driving on concrete in 4wd.

When turning, the four wheels each make a different radius track, which means that each wheel is turning a different speed. The differential in each axle allows for this speed difference between wheels on the same axle. For the speed difference between the front and rear wheels, there must (MUST) be slippage. Either a center differential or fluid coupling, or other gizmo allows this, or a tire must slip on the surface. Because our Jeeps are not all wheel drive with this center device, we must let the wheel slip on a slippery surface...snow, mud, sand, etc. Good traction on wet pavement, even dry hard clay, does not allow for the slippage needed.

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Old 09-26-2011, 03:00 PM   #3
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Youre fine. I wouldnt even turn to a full lock on gravel in four hi.
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Old 09-26-2011, 03:01 PM   #4
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Yep, full steering lock, 4WD (Hi or Low) and concrete is a recipe for breakng something. What you describe sounds normal and should be avoided.
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Old 09-26-2011, 03:03 PM   #5
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I bet your axle u joints are seized solid..mine did the same thing (but off road) when I pulled out the axles I couldn't get the joints to budge..I could even stand on the shaft and it wouldn't budge...
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Old 09-26-2011, 03:13 PM   #6
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Wow, now thats a response! 4 people in 5 minutes! haha thanks guys. Having never owned a 4wd vehicle before i wasn't sure. sets my mind at ease.

Nick
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Old 09-26-2011, 03:15 PM   #7
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this happens coz wranglers (and most SWB 4x4s) don't have a central differential, never do that again!!!!!
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Old 09-26-2011, 03:40 PM   #8
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haha gotcha thanks!

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