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Old 12-04-2010, 08:37 AM   #1
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Default Front pinion angle adjustment

Hi guys, I have a 00 XJ that is lifted 6 inches. It has adjustable lower control arms on it, stock upper control arms. I was wondering if some one could tell me how to adjust my front pinion angle. I seem to have a bad vibration when using 4wd.
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Old 12-04-2010, 08:51 AM   #2
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Extending the lower arms will rotate the pinion down and visa versa.
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Old 12-04-2010, 08:52 AM   #3
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Got pics of the drive shaft to pinion angle?
With a 6" lift your most likely gonna need long arms for sure. I never saw anybody running stock uppers on a 6" lift.
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Old 12-04-2010, 08:52 AM   #4
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Quote:
Originally Posted by JeepingDan View Post
Got pics of the drive shaft to pinion angle?
With a 6" lift your most likely gonna need long arms for sure. I never saw anybody running stock uppers on a 6" lift.
x2 on pic adjustable short arms would be a plus or ca drop brackets
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Old 12-04-2010, 09:00 AM   #5
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sorry for the newb question, but what are ca drop brackets?
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Old 12-04-2010, 09:03 AM   #6
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Quote:
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sorry for the newb question, but what are ca drop brackets?
These
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Front pinion angle adjustment-0526091107a.jpg  
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Old 12-04-2010, 09:05 AM   #7
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control arm drop brackets i run them with adjustable arm and short arm with no probs im on 10.5 inches of lift
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Old 12-05-2010, 02:29 PM   #8
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Click the image to open in full size.
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Old 12-05-2010, 02:31 PM   #9
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Pinion is Waaaaaaaaaaaaaaaaaaaay to low.

Shorten the lowers or extend the uppers.
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Old 12-05-2010, 02:46 PM   #10
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Ok...what will that do to my alignment? Do you know what the angle should be?
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Old 12-05-2010, 05:25 PM   #11
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Your caster angle should be 6-8 deg., steering wheel might need to be recentered.
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Old 12-05-2010, 05:35 PM   #12
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Sorry I should have been more specific...what should the angle of the pinion be. Sorry for the confusion.
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Old 12-05-2010, 06:08 PM   #13
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Setting the caster will put the pinion at the correct angle.
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Old 12-05-2010, 06:25 PM   #14
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How do you measure the castor angle?
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Old 12-05-2010, 06:31 PM   #15
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Angle finder on the lower portion of the inner C, there's a flt surface there.
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