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4WD erratic


 
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verticalmurph
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Joined: 21 Sep 2006
Location: hills of West Virginia

PostPosted: Thu Sep 21, 2006 4:27 pm    Post subject: 4WD erratic Reply with quote

I've a '94YJ, bought pre-owned. Drives fine in 2WD, but when shifted to 4WD H or L, my heep wants to pull drastically to the right. It feels like the back end is dragging when idling/coasting downhill and grinding/struggling accellerating/uphill. Everything, so far, checks out - front/rear diffs, brakes/e-brake, shifter fork, replaced both front axle u-joints. Specs - 2.5" suspension lift, 32's, no other drive train mods. We've been over it and have eliminated all of the 'normal' stuff and are now at a loss. I've missed all of the trail rides so far this year and it just aint fair. I want to play too. Please help. Thanx in advance for any assistance, thoughts and suggestions.

Murph
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ehirner
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Joined: 01 Jan 2004
Location: Eastern PA

PostPosted: Thu Sep 21, 2006 6:01 pm    Post subject: Reply with quote

What kind of road surface are you on when you're testing the 4WD?
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verticalmurph
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Joined: 21 Sep 2006
Location: hills of West Virginia

PostPosted: Fri Sep 22, 2006 7:33 am    Post subject: Reply with quote

The problem was first encountered on a wet slushy road, work prevented me from any additional testing until this week, when I tested in both dry dirt and gravel and again on dry pavement. Both roads have straight and winding sections. Both tests were about 2 miles in length. Hope this helps.
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verticalmurph
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Joined: 21 Sep 2006
Location: hills of West Virginia

PostPosted: Sun Oct 08, 2006 6:08 am    Post subject: Reply with quote

It appears that the previous owner / dealer swapped out the rear axle with 3.55 gears. The front has 3.07 gears. Next step - get the same gear ratio into both axles.
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