Calgary Jeep Association
4x4 Related Groups => Tech Talk => Topic started by: McClare on June 18, 2007, 11:04:27 PM
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If someone is selling 3" leaf springs does that mean it will add 3 inches lift? Also, would said leaf springs from an XJ fit on a comanche and give the 3" lift even though it is spring under axle?
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If someone is selling 3" leaf springs does that mean it will add 3 inches lift? Also, would said leaf springs from an XJ fit on a comanche and give the 3" lift even though it is spring under axle?
Yes when someone posts 3" leaf springs that is 3" lift. Now about the XJ leafs into a MJ, not necessarily because it all depends on the MJs original spring arch. XJs are pretty flat from the factory. I would say you might end up with a slightly lift 1-1.5" but not 3"
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The MJ main spring is longer than the XJ main spring. The easy solution is to get a custom leaf pack built by a spring company. As mentioned above the "mix and match" will not result in 3" of lift.
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MJs springs go under the axle where as XJs go on top of the axle, which is why MJ spings have more arch. For an easy 5-6" of lift on the back of an MJ simply cut off the spring perches and re-weld them on top of the axle(spring over).
And as said the main leaf on a MJ is longer than on an XJ.
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I went into standens to see if they could make some custom springs but the most they said they could do would be about 1.5" lift. If I do a spring over, it'll cost way more than I can afford right now because of all the extra parts to make it work right without vibrations and messing everything up. Plus I already have all the parts for a 3" lift in the front and the rear of the kit really did nothing for me
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A lot of kits I've looked at just have shocks and an add-a-leaf in the back. How would the add-a-leaf give 3 inches?
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Go to Standons and get the a new leaf pack arced up 1.5 '' than insert the 3'' add-a-leaf which will result in close to 3" of lift. If you add a 3" add-a-leaf to a set of tired old springs they will very quickly settle down to "very little" lift.