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A Question Of Shackles


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Are there more than one standard size stock MJ shackles?

 

Did The MT option come with a bigger shackle?

 

What is the stock center of hole to center of hole measurement for an original MJ shackle?

 

And finally if it is out there is there an equation to calculate the relationship between shackle length and lift....The spring must enter that equation some how?

 

. :MJ 2: .

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Nope, the amount of lift gained from a shackle is 1/2 of the distance difference between the old shackle and the new shackle. So if ne shackle is 2" longer it raises the vehicle 1" ... the shackle rotates the suspension on the forward pivot.

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Are there more than one standard size stock MJ shackles?  Only one size.

 

Did The MT option come with a bigger shackle?  No, all the same.

 

What is the stock center of hole to center of hole measurement for an original MJ shackle?  4-3/8"

 

And finally if it is out there is there an equation to calculate the relationship between shackle length and lift....The spring must enter that equation some how?

 

. :MJ 2: .

 

I used the below Teraflex extended greasable shackles to make up for the inevitable MT spring sag that occured about a year after I installed them. These shackles are 6" eye-to-eye and gave me close to a 1" lift.

 

file_23_5.jpg

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Are there more than one standard size stock MJ shackles?  Only one size.

 

Did The MT option come with a bigger shackle?  No, all the same.

 

What is the stock center of hole to center of hole measurement for an original MJ shackle?  4-3/8"

 

And finally if it is out there is there an equation to calculate the relationship between shackle length and lift....The spring must enter that equation some how?

 

. :MJ 2: .

 

I used the below Teraflex extended greasable shackles to make up for the inevitable MT spring sag that occured about a year after I installed them. These shackles are 6" eye-to-eye and gave me close to a 1" lift.

 

file_23_5.jpg

 

 

Thanks  :thumbsup:

 

And it just so happens those are the exact shackles sitting on the workbench right now  :banana:

 

Never came with the bolt......do you recall if that bolt is a regular 1/2" or a goofy 14 mm  :???:

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