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Old 06-15-2011, 09:49 AM   #1 (permalink)
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Rear Leaf Spring Question

What can I do to fix the moving of my axle while taking off forward or reverse? Friend of mine says the leaf springs are weak. He can see the the diff roll up towards the back when I move forward and move forward when I back up. Is there something I can have done to the springs ? I have the yj springs installed. It does look like the rear is sagging a little.

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Old 06-15-2011, 09:54 AM   #2 (permalink)
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track bar
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Old 06-15-2011, 10:20 AM   #3 (permalink)
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you mean traction bar
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Old 06-15-2011, 10:50 AM   #4 (permalink)
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Quote:
Originally Posted by zukiscoot View Post
you mean traction bar
^^This

Quote:
Originally Posted by 88.5zuki View Post
track bar
^^Not that

Travis..
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Old 06-15-2011, 11:03 AM   #5 (permalink)
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AH yes the old:track/panhard VS traction bar.......
I'm sure that's what he meant...
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Old 06-15-2011, 04:12 PM   #6 (permalink)
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do you have lift blocks? that makes it worse. the springs are much longer than sammy's right? maybe use 2 main leafs with the eyes of the second one cut off, to reinforce the first leaf.
the leaf spring pack usually keeps that rotation from happening, so if it's happening, then yes, the leaves are too soft to hold it steady. Unless of course, you upped the horsepower to 350 and aren't telling us............
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Old 06-15-2011, 05:42 PM   #7 (permalink)
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No engine upgrade just header. Yeah it moves a few inches in either direction. Pan hard and traction bars I thought were for the front ?

The leaf springs bow in either direction when going forward or reverse, looks kind of scary. I don't see how adding one small spring would lift it back up?? Have any pics of what ur telling me?

Thanks for the quick response
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Old 06-15-2011, 06:16 PM   #8 (permalink)
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well, I was thinking of another main spring, not a small one near the bottom of the pack.
a panhard bar is for keeping the axle located left to right.
a traction bar is for keeping the pinion pointed correctly.
remember the track bars you'd bolt on underneath the spring pack on musclecars? that was to keep the pinion pointed right by eliminating spring wrap, which you're getting.
. Now on 4x4's, our spring packs are usually on top the axle, so standard track bars for a muscle car are completely out. I'm gonna draw a picture and scan it in, it'll take some time, I'll be back shortly......
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Old 06-15-2011, 06:29 PM   #9 (permalink)
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Thanks!!
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Old 06-15-2011, 07:10 PM   #10 (permalink)
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something along these lines:
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Old 06-15-2011, 07:15 PM   #11 (permalink)
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Ok I see now, I have seen these installed on lifted trucks. I just never seen them on a jeep or Sami at all. I just have the RRO Jpeater kit.
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Old 06-16-2011, 09:32 AM   #12 (permalink)
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A few pictures of the one I had on my Bronco 6.5 years ago:







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Old 06-17-2011, 07:27 AM   #13 (permalink)
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word of advice when you fab a traction bar you want it to be under no bind at ride height.
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Old 06-18-2011, 07:28 AM   #14 (permalink)
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I really don't want a traction bar as the rear springs are sagging a little as it is, would like to know how to get them back up to specks without buying new springs? Also, anyone know what years the YJ springs that are used on the RRO Jpeater kit are? If I can find a used set that are not wore out I think that will work? Someone told me about adding a leaf but don't know how that would lift it up as the main spring looks to be the problem.
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Old 03-06-2012, 03:56 PM   #15 (permalink)
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A-1 spring can re-arc your springs for about $150.00 a pair. they're in bakersfield. ca
(sorry,,, just noticed the date of the post, probably been handled by now)

Last edited by rgacord; 03-06-2012 at 03:58 PM.
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Old 03-07-2012, 05:47 AM   #16 (permalink)
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Thanks - Yes someone in my town referred me to them.
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