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Unread 01-26-2012, 06:26 AM   #1
mikes88yj
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1988 YJ Wrangler 
 
Join Date: Aug 2008
Location: ma
Posts: 4
Front axle centering SOA

Bought an 88 Wrangler that PO did an SOA on, was wondering if there is a way to tell if the front and rear axles are centered from left to right? All old spring perches and shock mounts were cut off. Just double checking everything that was done before I start body work. Also, no alignment shop around me will touch the thing with 35's on it.
Front axle is a dana 30 rear is an xj dana 44
Thanks,
Mike

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Unread 01-26-2012, 10:04 AM   #2
Joe Dillard
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1991 YJ Wrangler 
 
Join Date: May 2004
Location: King George, VA
Posts: 12,385
One way is to use a plumb bob along the sides of the frame above the axles & measure where the string is to a point on the axle (EG: from where the string falls to the top of a knuckle) and compare side to side measurements to see if they are equal.

Check this link out for a basic toe-in alignment. Super simple & free since all you can do on a YJ is toe-in.

http://www.4x4xplor.com/alignment.html
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Unread 01-26-2012, 11:22 AM   #3
ssyj94
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1994 YJ Wrangler 
 
Join Date: Jan 2009
Location: new york
Posts: 892
To see if its square with the frame you can also measure from center of driver balljoint to the passenger framerail and then pass balljoint to driver frame. Basically measureing a big X underneath.
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Unread 01-26-2012, 11:43 AM   #4
zman
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1995 YJ Wrangler 
 
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Location: Clarkdale, AZ
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Pretty hard to screw up the centering of the axels. Even if they were off a 1/4" it would be hardly be noticable. I would be more concerned with DL angles and caster.

zman
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Unread 01-26-2012, 12:03 PM   #5
mikes88yj
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1988 YJ Wrangler 
 
Join Date: Aug 2008
Location: ma
Posts: 4
Thanks will try with the plumb bob and will also measure to verify.
Pinion angles look to be alright about 2-3 degrees from sye and set at about 7 degrees caster angle in the front. I just wanted to check that it tracks right.

Thanks,
Mike
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