GM Drivetrain & Suspension Chassis | Transmission| Driveshaft | Gears/Rear End/Differential | Traction Aids

lowering shackle question

Old Jan 22, 2011 | 05:41 PM
  #11  
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just do a 2/4 its a nice decent drop not to low and not to high
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Old Jan 23, 2011 | 11:28 PM
  #12  
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the way shackles work is 1"=.25
so a +2"shackle is only worth .5 for height

i know this is pretty hard for some to understand but its fact, youre only moving one of two mounting points on the leafs
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Old Jan 23, 2011 | 11:39 PM
  #13  
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Originally Posted by KleenHall
the way shackles work is 1"=.25
so a +2"shackle is only worth .5 for height

i know this is pretty hard for some to understand but its fact, youre only moving one of two mounting points on the leafs
Want to explain how you get those numbers?

Using that theory, 1" at the end should equal .5" at the axle, since it's halfway between where the height change is occurring, and the fulcrum.
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Old Jan 23, 2011 | 11:50 PM
  #14  
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but youre forgeting the datum line is not level, its at an angle
how many poeple buy 2" shackles and dont get 2"?
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