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Old 03-21-2012, 07:47 AM   #1
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front end alignment

Morning, I have an 06 rubi lj, just recently lifted with RE3.5 superflex with all adj. control arms. Had alignment done, seems to still be drifting slightly to the right but not severe pull. Are there certain parameters on the toe and camber settings with these kits? Not certain most auto alignment shops are familiar with vehicles after the suspension is changed, or do they go by factory recommendations? Any ideas or advice would be appreciated.

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Old 03-21-2012, 09:50 AM   #2
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The L/R caster is slightly different, the right caster angle is set to be slightly higher than the left caster angle to tend to pull you a bit to the right. That is there so you'd drift to the right instead of to the left you were incapacitated. Not saying that's why yours is but...

The toe-in setting remains the same but the caster angle should be slightly lower for larger tires. For 33" tires for example, 5-6 degrees is optimal. The factory caster angle setting for factory size tires is 7 degrees.

Make sure your tire pressures are all equal too.

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Old 03-21-2012, 10:18 AM   #3
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Hey Jerry. (sorry to ) But what PSI should I run? I have 33x10.5 15
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Old 03-21-2012, 10:24 AM   #4
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26-28 psi is fine for a 33x12.50 on a 15x8 wheel.

Edit: P.S. Brain fart above on the caster angle thing... the passenger side's caster angle is slightly reduced from the driver's side to tend to pull the Jeep towards the right, not increased.
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Old 03-21-2012, 07:59 PM   #5
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Caster is normally set 1/2° to 1° higher on the passenger side to make it try to drift to the left, to compensate for road crown.
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Old 03-21-2012, 09:49 PM   #6
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Quote:
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Caster is normally set 1/2° to 1° higher on the passenger side to make it try to drift to the left, to compensate for road crown.
THANK YOU, precisely correct on caster.

Original poster asked about camber adjustment. There is no camber setting other than straight up perpendicular with axle. If camber is off, suspect worn ball joints or bent axle tube.

Camber can be changed using adjustable ball joints, and most folks don't realize those same balljoints can be used to change caster.

For us trail/streeters who run our rigs on the hwys to the trails we play on, we only check camber to look for worn ball joints or bent tubes, and worry about just toe-in adjustment, which we can easily do ourself.
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Old 03-22-2012, 05:20 AM   #7
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thank you very much , I am getting on it today with the information provided
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Old 03-22-2012, 05:47 AM   #8
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fishband, I see you are in Orlando.....call Josams and see if they will take your TJ. They are the absolute best of aligning anything. They may not want a TJ though as it is difficult and cumbersome to adjust the camber. They will correct caster (to the left) for road crown. They did my motorhome after endless tries from Monaco, the manufacture, and got the pulling thing perfect.
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Old 03-23-2012, 05:51 AM   #9
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Hey BB..yeah thanks I am familiar with Josam, we have used them to align the larger company trucks here locally. I printed the info from this thread and used it as a guide yesterday and the steering is behaving much better. Thanks again guys for helping me yet again.
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Old 03-23-2012, 06:53 AM   #10
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Quote:
Originally Posted by B.B. View Post
fishband, I see you are in Orlando.....call Josams and see if they will take your TJ. They are the absolute best of aligning anything. They may not want a TJ though as it is difficult and cumbersome to adjust the camber. They will correct caster (to the left) for road crown. They did my motorhome after endless tries from Monaco, the manufacture, and got the pulling thing perfect.
FWIW, it's the same adjustment needed to adjust camber as it is to bump caster on one side. Upper ball joint eccentrics.

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