Shackles..check my math

So I did the search thing just wanted to re-check. Stock shackles are 3" eye to eye, and the ones I just got are 7.5", which equals 2.25" lift right?

7.5" - 3" = 4.5" but I don't think you'll get that much lift out of it, so 2.25" maybe be right... now I see you divided by 2. hmmm. :dunno:

Country said:

So I did the search thing just wanted to re-check. Stock shackles are 3" eye to eye, and the ones I just got are 7.5", which equals 2.25" lift right?

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Your maths is right as you only get half the lift as you are changing one end only. I would never run shakles that long as the extra leverage will rip the bracket clean off as some here have had happen. Take a look at the thickness of the metal! You will get lots of sway and rear steer from them as well even on the highway. You have also altered the roll centre a lot so your suspension pivots now at a different hieght to the front of the spring as well as the front of the car as well!

What would be the most you would do? Could always cut em! Have to get new spring packs anyway....just thought they would help with driveshaft angles.

Hey country along with what Gojeep said if you don't have goos springs you may see more axle wrap. It will help with pinion angle when used with a SYE so it is a step in the right direction but using the full 2.25 in of lift out of them is kida iffy, your better off with good springs. IM me, I may have a set for you along with some other stuff you were lookin for.

Country said:

What would be the most you would do? Could always cut em! Have to get new spring packs anyway....just thought they would help with driveshaft angles.

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i hate to bust in on this thread.....
how much lift can you safely get with shackles.......also anybody used the z-71 shackles........my dad-n-law is changing his to get the truck to sit level so maybe i could use his to get an extra inch or so........thats what i heard...any comments will be appreciated