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Unread 11-10-2005, 12:56 PM   #1
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What's the Difference Between...

A BB with an add-a-leaf and one with a shackle? Thanks in advance!


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Unread 11-10-2005, 01:04 PM   #2
Jerry Bransford
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I don't know leaf spring suspensions that well but one thing for sure, an add-a-leaf will sure make it ride a lot stiffer.
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Unread 11-10-2005, 03:30 PM   #3
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if your leaves are in bad shape, an add a leaf will provide a longer lasting lift than a shackle lift would. i made the mistake of putting shackles on the back of my XJ to try and boost the sagging rear end. the shackle just accelerated the negative arch of the leaves. now ive gotta spend like 150 for new springs, plus 60 or so for add a leafs to fix what i didn't do right the first time.

shackles are easy, 2 bolts in either side, but add a leafs are better if you care about your springs.

the very best way to do things is to replace the springs, but its hard to find budget-boost sized full leaf packs aside from those made by OME, and those are pretty expensive.
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Unread 11-10-2005, 04:13 PM   #4
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Originally Posted by Canuck262
A BB with an add-a-leaf and one with a shackle? Thanks in advance!

I mostly see BB referenced for TJ's as a puck placed on top of the coil. On an XJ, I'm going to assume the option is a coil spacer in front with an AAL(add-a-leaf) or a BB(Budget boost) with a shackle lift. The AAL will create a stiffer ride as mentioned. Your doing just as it sounds. Adding a shorter arched leaf to your pack. Helps add some arch and stiffness to your existing pack. A Shackle lift will replace your existing shackles with taller ones. If you're springs are sagged and shot, this will only creat the illusion of an improvment but you'll still need new springs. Taller shackles in the back arent as bad as the front. In the front they can affect your approach angles and handling.

IMO, if your springs are in decent shape, I would go with the shackles. As long as they're not too tall. Bout an 1 1/4 or so wqould be as high as I would go. You can always use them in conjunction with new springs if you ever decided to add lift springs. Same thing you can do wth the pucks. Then again opinions are like...
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