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Old 02-08-2011, 06:02 PM   #1
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rear springs

here's what i have. i took the pass. side rear leaf spring off of the 90 yj i have for parts and put it on the drivers side of my 89, now the drivers side sits back an inch farther than the pass. side. what would cause this? thanks Kim

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Old 02-08-2011, 06:40 PM   #2
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The leaf spring is on backwards maybe? Measure from the center pin to either side of the leaf.

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Old 02-08-2011, 07:15 PM   #3
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you can't put them on backwards due to the front shackle bolt is bigger.?
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Old 02-08-2011, 07:23 PM   #4
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Take some pictures......Really different size?....I guess I never noticed that.
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Old 02-08-2011, 08:10 PM   #5
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One probably has settled more than the other...swap the other spring off the donor.
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Old 02-08-2011, 08:19 PM   #6
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i guess i don't under stand what sag would have to do with the centering of the springs?
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Old 02-08-2011, 08:58 PM   #7
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Are the springs side specific when you buy new ones? thanks
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Old 02-08-2011, 09:00 PM   #8
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when u buy new springs one hole is bigger then the other, and the rear hole is bigger which goes on the opposite side of the shackle
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Old 02-08-2011, 09:06 PM   #9
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doesn't the bigger hole go to the front? at least thats what mine do.
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Old 02-08-2011, 09:48 PM   #10
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i dont think it matters as long as both of them are facing the same direction. but most likely big hole goes in the back. I could be remembering it wrong since i did them a while back. but the leaf springs had built in shims so it could only go one way
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Old 02-08-2011, 10:39 PM   #11
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Okay. So it is most likely not on backwards. After checking out my rig this is how it is. 21 mm for frame spring mounts, 19 mm for shackle end.

Now....

Is the arc on the springs the same? How about shackle angles, do they look the same on both sides? Are the leafs staggered the same on each pack? Do both packs have the same amount of leafs?
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Old 02-08-2011, 11:04 PM   #12
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the one on the drivers side is pretty much straight up and down, the one on the pass. side is angled a little bit towards the front.
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Old 02-08-2011, 11:25 PM   #13
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Swap out the other spring.
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Old 02-09-2011, 12:56 AM   #14
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thanks for your input Kim
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Old 02-09-2011, 07:46 PM   #15
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Quote:
Originally Posted by Bigowe View Post
i guess i don't under stand what sag would have to do with the centering of the springs?

Settling/sag actually will change the length of the spring.......not much just enough to give you the headache you have......

Check your leaf count too........
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Old 02-09-2011, 11:50 PM   #16
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i'm getting another set from a friend and i will put both sides on this time. Thanks for all your help i appreciate it. Kim

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