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Old 08-31-2010, 06:18 PM   #1
jvc
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Alignment Specs

Anyone have the alignment specifications
for a 1999 Jeep Wrangler TJ SE and Sahara.

thanks

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Old 08-31-2010, 07:28 PM   #2
jvc
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especially the rear axle alignment specs.

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Old 08-31-2010, 07:38 PM   #3
Knows a couple things...

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The rear axle is not adjustable, it is what it is. Only if rear aftermarket adjustable length control arms have been installed could this be off enough to need any help and that is limited to just making sure the axle is square and its pinion angle is where it should be.

For the front:

Toe-in: .15 degrees +/- .15 degrees

Caster angle: 7 degrees for up to a 30" tire, +/- 1 degree. 4.5 to 5 degrees for 35" tires. 5-6 degrees for a 33" tire. This is not adjustable without aftermarket control arms except on very early TJs that have cam bolts on the lower control arm mounting brackets.

Camber angle: -.025 degrees +/- .63 degrees. This is not adjustable without aftermarket adjustable angle ball joints.
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Old 09-01-2010, 08:05 AM   #4
jvc
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thanks Mr. Bransford.

I did get my stock SE aligned (firestone lifetime $150.00)
JUST to get the numbers and establish my baseline.

left front
-0.5 camber
6.2 caster
0.10 toe

right front
-0.4 camber
6.1 caster
0.15 toe

0.25 total toe
-0.03 steer ahead

left rear
-1.1 camber
0.34 toe

right rear
0.1 camber
0.02 toe

0.36 total toe
0.16 thrust angle

also I'm trying to understand the relationship of all of these specs
before
changing suspension, drivetrain (SYE), axle upgrades.

only thing is that this gets expensive real fast !
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Old 09-01-2010, 11:22 AM   #5
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This is a great write up explaining all the alignment specs:

The "End-all, Be-all TJ Alignment" thread.
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Old 09-01-2010, 06:57 PM   #6
jvc
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thanks "Unlimited..."

I'll be reading over that thread for awhile...

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