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Unread 07-27-2011, 06:43 AM   #1
1Dirtymudder
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New lift with pics

Just got done last night. I have a few questions now though.



Does this mean I need an adjustable rear trackbar? I got a new one (not adjustable) from IRO with the kit but my axle isn't centered quite right.

Right side

left side


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Unread 07-27-2011, 06:51 AM   #2
1Dirtymudder
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I adjusted the front wheels and took the rear sway bar out for now (since it hits the spring and/or rim). When I took it for a test drive, everything seemed to work pretty well except there is a vibration when I go about 30 or so. Could this be the need for alighnment or should I drop the transfer case. The kit came with the drop kit but I didn't install it yet. At slower speeds I don't notice any vibration. I'm new to all this but it seems like, if it was driveline vibration, it would be noticable at slower speeds as well.
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Unread 07-27-2011, 09:51 AM   #3
LordHobbit
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Contact IRO and see if you can turn in the non-adjustable and get an adjustable one. It'll fix your non-centering issue.

Make sure your pinion is pointing correctly in the rear. Your vibes may be due to an incorrect pinion angle. You want it to look like this:



Your front pinion should point directly at the transfer case.
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Unread 07-27-2011, 09:54 AM   #4
speedbucket
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Quote:
Originally Posted by 1Dirtymudder View Post
I adjusted the front wheels and took the rear sway bar out for now (since it hits the spring and/or rim). When I took it for a test drive, everything seemed to work pretty well except there is a vibration when I go about 30 or so. Could this be the need for alighnment or should I drop the transfer case. The kit came with the drop kit but I didn't install it yet. At slower speeds I don't notice any vibration. I'm new to all this but it seems like, if it was driveline vibration, it would be noticable at slower speeds as well.
you definetly nee to do an alignment, pinion angles need to be correct, but more than likely you need to replace your driveshaft ujoints to cure the vibes, they end up wearing a pattern in the needle bearings and since the driveshaft angle has changed, the u joints arent' liking it much
start with getting the proper pinion angles
also you dont have the CV boot front driveshaft right?
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Unread 07-27-2011, 09:58 AM   #5
HighLonesome
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You are going to loose those wheel weights on that rear wheel. The endlink will clear them away.
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Unread 07-27-2011, 11:01 AM   #6
gothchick
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^^^... Lol. Good eye.

OP, lift looks good.
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Unread 07-27-2011, 11:03 AM   #7
1stblack97ZJ
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What lift is that?
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Unread 07-27-2011, 11:09 AM   #8
Virmagicus
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Does the rear axle look off center while looking from behind? Get a straight edge and measure what you have to the fender on both sides.
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Unread 07-27-2011, 12:10 PM   #9
1Dirtymudder
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Originally Posted by HighLonesome View Post
You are going to loose those wheel weights on that rear wheel. The endlink will clear them away.
I just took the whole sway bar and links off for now
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Unread 07-27-2011, 12:12 PM   #10
1Dirtymudder
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Originally Posted by Virmagicus View Post
Does the rear axle look off center while looking from behind? Get a straight edge and measure what you have to the fender on both sides.
Yeah, you can tell from the back if you look down the sides of the jeep. I'll call IRO and see what they say as far as the track bar goes.
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Unread 07-27-2011, 12:15 PM   #11
1Dirtymudder
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Quote:
Originally Posted by speedbucket View Post
you definetly nee to do an alignment, pinion angles need to be correct, but more than likely you need to replace your driveshaft ujoints to cure the vibes, they end up wearing a pattern in the needle bearings and since the driveshaft angle has changed, the u joints arent' liking it much
start with getting the proper pinion angles
also you dont have the CV boot front driveshaft right?
I have the Ujoints up front. Has anyone else ever replaced their U joints after a lift?
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Unread 07-27-2011, 12:25 PM   #12
1Dirtymudder
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My pinion angles, in the back, look pretty close to the above textbook pic. How do you measure it accurately? Or, is it just an eyballin' sort of thing?
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Unread 07-27-2011, 12:48 PM   #13
1stblack97ZJ
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Quote:
Originally Posted by 1stblack97ZJ View Post
What lift is that?
did you completely miss my question? ^
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Unread 07-27-2011, 01:33 PM   #14
1Dirtymudder
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did you completely miss my question? ^
Sorry...."It's the IRO 4.5" Premium lift". I just got off the phone with them. They are swapping out my trackbar with an adjustable one. I'll just be charged the price difference. They are great for customer service. Everytime I called them with a question, they were always a big help.
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Unread 07-27-2011, 06:56 PM   #15
1stblack97ZJ
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Yep they are pretty awesome. Did you get the Reuglar or Double Shear?
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