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Castor correction options

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Old Feb 22, 2012 | 04:05 PM
  #11  
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Originally Posted by bigf350sd
You can do lower only adjustable arms, and lengthen them very slightly, or have your alignment guy do it, to get slightly more caster. With that much lift, I'd try around 6 degrees first, then go from there. Around 4.5 degrees is usually where they'll be at when stock. If you have it checked, and it's less than 4.5, you may even start at that number, 4.5, and see how it drives.
Stock caster is 4* with 2* of up tilt. With a lift kit caster is decreased and could be as bad as 0 or 1* (depending on how the arms are set up. To suggest over 4* would mean that his pinion angle would be the same as stock or lower (flatter).
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Old Mar 1, 2012 | 06:15 PM
  #12  
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Just an update - I installed the jks j-spec fixed length lower front control arms and it made a HUGE difference. Just the extra 3/8" is enough to get the jeep almost back to factory like ride quality. Very impressed and satisfied. The pinion angle is slightly "flatter" but no driveline vibrations or any binding when the front axle is at full droop. Good product for a 2-3" lift.
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Old Mar 1, 2012 | 06:16 PM
  #13  
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Also- the "flighty" feeling is gone, and no more bump steer.
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Old Mar 1, 2012 | 06:35 PM
  #14  
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I have the same issue with my AEV 3.5" lift and was wondering what is the solution, so will I need the same setup for this to eliminate the same issues you had ???
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Old Mar 1, 2012 | 06:36 PM
  #15  
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I guess I might contact David and get his opinion forgot the answer was up ... Thanks anyways
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Old Mar 1, 2012 | 06:55 PM
  #16  
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Originally Posted by jk-tony
Just an update - I installed the jks j-spec fixed length lower front control arms and it made a HUGE difference. Just the extra 3/8" is enough to get the jeep almost back to factory like ride quality. Very impressed and satisfied. The pinion angle is slightly "flatter" but no driveline vibrations or any binding when the front axle is at full droop. Good product for a 2-3" lift.
Originally Posted by jk-tony
Also- the "flighty" feeling is gone, and no more bump steer.
Glad to hear the J-Spec USA fixed length lower front control arms worked out well for you like they did for me.
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Old Mar 3, 2012 | 01:03 PM
  #17  
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Originally Posted by UAE455
I have the same issue with my AEV 3.5" lift and was wondering what is the solution, so will I need the same setup for this to eliminate the same issues you had ???
Call David @ northridge. I'm not sure if they're gonna be enough for 3.5" but I don't see why not.
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