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Old 05-06-2012, 05:22 PM   #1
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Another Lift Question

I bought and installed the zone combo 4.25 lift this past week, is anyone experienceing any driveline vibes? I did the BL and MML to hopefully prevent them but I am having a few between 30 and 50 mph. I called Zone and tech support told me to start adding washers to the transfer case skid plate, which I have added 3 and it seems to be getting better. Can I add to many and over compensate?

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Old 05-06-2012, 06:00 PM   #2
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Quote:
Originally Posted by brianwh5
I bought and installed the zone combo 4.25 lift this past week, is anyone experienceing any driveline vibes? I did the BL and MML to hopefully prevent them but I am having a few between 30 and 50 mph. I called Zone and tech support told me to start adding washers to the transfer case skid plate, which I have added 3 and it seems to be getting better. Can I add to many and over compensate?
Your rear drive shaft is not correct. Same problem when I installed long arm kit Rubicon Express.

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Old 05-06-2012, 06:44 PM   #3
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I'd say just keep adding until you feel no more vibes. Only way to avoid a tcase drop (what you're doing) is to get an SYE in there but that's $500 without labor.
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Old 05-06-2012, 08:44 PM   #4
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I have added 3 washers so far and it's down about 3/8 inch, how far would be too far? I think the kits are 3/4 inch but that is when you don't have a MML.
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Old 05-06-2012, 08:47 PM   #5
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Keep adding washers until it's gone my t case drop was the 3/4" plus 3 washers and still had vibes before I did my sye

Also after my mml I had the spacers and still had vibes had to take washers of because my engine was knocking the firewall from being tilted back to far
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Old 05-10-2012, 06:32 AM   #6
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I think I have the vibes taken care of with 1/2" T/C drop but I feel and hear a clicking/thump after I brake and then accelerate, also when I turn left and hit some mild bumps I can hear this as well, anybody ran into this? or have an idea where to start looking. Thanks
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Old 05-10-2012, 08:01 AM   #7
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Where does it sound like it's coming from? It could be your transmission mount; having a t-case drop seems to put a strain on them.
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Old 05-10-2012, 08:05 AM   #8
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it sounds like it's right under my feet
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Old 05-10-2012, 08:06 AM   #9
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I'd guess either transmission mount, or the TSB regarding the t-case shifter:

Jeep TJ Transfer Case Shifter Knocking TSB
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Old 05-10-2012, 08:15 AM   #10
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thanks for the article, I'm reading it now
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Old 05-10-2012, 09:16 PM   #11
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found problem, if anyone cares, bolt for sway bar connectors was rubbing frame, sway bar had shifted a little towards passenger side and was make bolt rub, just flipped it around and all is good, figured I would share it if anyone else has this problem.
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Old 05-11-2012, 07:33 AM   #12
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Just a heads up, that may not permanently fix your problem. If it doesn't and your sway bar is shifting in the bushings, you can either replace the bushings to see if that fixes your problem, or do something like this to keep it from shifting:

Jeep Swaybar Shifting Over Fix

Or if you have the cash you can do yourself a favor and ditch the stock sway bar and go with something better like the Anti-Rock.
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Old 05-11-2012, 02:15 PM   #13
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Thanks Geiman, you were right went to lunch today and it is already rubbing, probably will order the collars or something like them, definitly not the bushing, I can't budge the sway bar by pulling on it, does the anit-rock bar make a big difference in driving?
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Old 05-11-2012, 02:19 PM   #14
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Some see increased body-roll on the road after installing the Anti-Rock, but if you're suspension is setup correctly with good components it shouldn't be that noticeable, or even a problem. I've been daily driving with one for some time now and wouldn't have it any other way. Off-road it's the bees-knees, and well worth it's price.

I had the same problem before I installed my AR. Until I got around to fixing it, I just carried a dead-blow hammer in the Jeep and beat the sway bar over from time to time as it needed it.
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Old 05-11-2012, 02:35 PM   #15
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sounds good geiman, may have to opt for the dead-blow hammer for a little while

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