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Old 05-18-2012, 11:29 PM   #1
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alignment after lifting

Is a 4 wheel alignment necessary or does it matter compared to just a front end alignment? Recently put in a 2"BB and was checking a few local places online for pricing and 4 wheel seems to be the most common. What benefit would it be to do a 4 wheel instead of a front end only?

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Old 05-19-2012, 06:30 PM   #2
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anyone?

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Old 05-19-2012, 06:53 PM   #3
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You need a 4 wheel
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Old 05-19-2012, 07:00 PM   #4
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Forget the shops trying to mislead you into doing anything beyond a very basic toe-in adjustment. In fact, a toe-in is all that size lift needs and is all that can even be adjusted on newer Wranglers. And if you have a tape measure, wrench, and pliers, you can easily set your own toe-in. Yes, really and with minimal care your toe-in result will just as accurate as an alignment expert can produce. Really.

Interested? If so, I can post how later after I get back from the store with my wife. Or someone else can post the information that is regularly posted here.
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Old 05-19-2012, 07:52 PM   #5
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Originally Posted by Jerry Bransford View Post
Forget the shops trying to mislead you into doing anything beyond a very basic toe-in adjustment. In fact, a toe-in is all that size lift needs and is all that can even be adjusted on newer Wranglers. And if you have a tape measure, wrench, and pliers, you can easily set your own toe-in. Yes, really and with minimal care your toe-in result will just as accurate as an alignment expert can produce. Really.

Interested? If so, I can post how later after I get back from the store with my wife. Or someone else can post the information that is regularly posted here.

Thanks Jerry. If you've got instructions, or a link if you previously have posted them, it would be appreciated. What does the 4 wheel do then if a toe in is all that is needed?
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Old 05-19-2012, 08:02 PM   #6
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A four wheel alignment aligns both axles, if they were adjustable... which yours are not adjustable. The only thing that changes with a suspension lift is the toe-in. A suspension lift slightly reduces how much toe-in there is so you need to adjust it. The caster also slightly decreases naturally from a suspension lift installation but the caster angle is not adjustable unless aftermarket adjustable length control arms. But no worries, the caster angle decreasing slightly is actually good in that bigger tires require slightly less caster angle. The camber angle is not adjustable either.

Set your toe-in per the instructions at Basic Jeep Front End Alignment so the front of the tires are 1/16" to 1/8" closer together than they are in the rear. That's it. I'd aim more for 1/16" than 1/8" but 1/8" is fine too. And all you're doing to adjust the toe-in is rotating the tie rod after loosening its two clamps. That's easy-peasy.

Oh, you'll likely need to recenter your steering wheel after setting your toe-in but that is equally easy. Instructions for that are also on that same website. There is an adjustment for centering the steering wheel on the drag link which is right above your tie-rod.
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Old 05-20-2012, 10:57 PM   #7
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Thanks for the link and info Jerry. I am a bit confused about how to measure the tire width though. The pic shows the tape measure on a seam on the tire, but wouldn't it be the same on the opposite side when measuring the back of the front tire?

or is front/back of the tire outside/inside or is it front of Jeep/drivers door (like I am thinking)?
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Old 05-20-2012, 11:12 PM   #8
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Quote:
Originally Posted by user4574 View Post
Thanks for the link and info Jerry. I am a bit confused about how to measure the tire width though. The pic shows the tape measure on a seam on the tire, but wouldn't it be the same on the opposite side when measuring the back of the front tire?

or is front/back of the tire outside/inside or is it front of Jeep/drivers door (like I am thinking)?
Check out these links, maybe Stu can explain it for you
http://www.stu-offroad.com/steering/align/align-1.htm
http://www.stu-offroad.com/steering/align/align-2.htm
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Old 05-21-2012, 11:21 AM   #9
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You can also go to Lowe's (or similar) and pick up two pieces of square aluminum tube. You can mark the proper diameter for your tires, and then clamp those pieces to your rotors. This allows you to get a very precise alignment by yourself at home. I believe Jerry has a good picture of doing this so you can get a visual.

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