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Old 03-24-2008, 12:01 AM   #1
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Unhappy Need Alignment and t-case drop bad!!!

ok so as any of you who have seen my recent post know, i just installed a 2" BB and im pretty sure i need to drop the transfer case. also, when i hit about 60 mph i get a real bad vibe...i am hoping this is just the desperate need for an alignment (i know you need to do one after a suspension mod such as this). unfortunately i dont know exactly how to do either. if anyone has advice, or even detailed instructions, that would help a bunch and be extremely appreciated

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Old 03-24-2008, 08:31 AM   #2
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You shouldn't need a t-case drop for just the 2" lift. Your vibes are most likely going to be alignment related.

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Old 03-24-2008, 09:15 AM   #3
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i needed a 1/2" drop and i still have vibes. (2" lift)

and you have a dana 44 which means your more likely to get vibes. but it could be related to alignment.
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Old 03-24-2008, 09:53 AM   #4
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i would do the drop, jeep driveshafts are so short 2 inches can affect the pinion angle enough. i did 2" on my daily driver xj, and i have slight vibration after 60. and since it is free for me, i aligned it afterwards, and actually it stayed the same. check your driveshaft u joints, and just take it to a shop to get the alignment done, shouldn't be more than 80 bux, closer to 50. it is almost impossible for an alignment to give you a vibration at high speed. alignment will cause tire wear, off center steering wheel, pulling, and if it was so bad you could feel something like that, you'd be able to look at a wheel and see it sitting sideways or something.
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Old 03-24-2008, 09:53 AM   #5
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when im looking underneath it, it definitely looks like it needs it the angle of the rear drive shaft doesnt look right. how hard is it o drop it?
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Old 03-24-2008, 12:31 PM   #6
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jack under skid, bolts out, washers between plate and frame, jack up, bolt back on.

write up

http://www.4x4xplor.com/t-casedrop.html
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Old 03-24-2008, 12:36 PM   #7
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And here is your alignment on the same sight!!
http://www.4x4xplor.com/alignment.html
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Old 03-24-2008, 12:42 PM   #8
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you can do the alignment yourself, jeeps are simple. but if you find a shop to do it for 50 bux its worth it, computer alignments measure to the .01 (1 hundreth) of one degree. the above method will get the job done just fine to.
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Old 03-24-2008, 04:22 PM   #9
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Thanks alot guys, the t-case is dropped. im about to start the alignment.
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Old 03-24-2008, 05:18 PM   #10
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ok so no im trying to set my toe-in, but only one side of the tie rod will rotate on the threads. also, is the tie rod supposed to have any slight bend in it at all??? if not do i need to be trying to bend it back? and when i say slight i mean very slight, doesnt look like it would interfere with it spinning on the end threads.
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Old 03-24-2008, 05:27 PM   #11
Knows a couple things...

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The tie-rod ends will wobble enough so your bent tie rod can be rotated. Use a pipe wrench on the tie rod, it makes turning it a lot easier. Get a tube of antiseize from your local auto parts store and coat the threads on the tie rod with it. Antiseize will prevent the tie rod from sticking and being hard to turn again in the future.

So far as the bent tie rod goes, I would straighten it before reinstalling it if it's not too bad. A bent tie rod will bend even easier next time. Or better yet, replace it with a beefier tie rod.
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Old 03-24-2008, 10:42 PM   #12
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Now im totally lost. I got the alignment adjusted perfectly, as well as dropping the t-case, but still when I hit 60 i get the shakes. No idea!! Anyone got anything?
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Old 03-24-2008, 10:59 PM   #13
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lets first figure out if you have the shakes-like coming from the front end/out of balance tire? or driveshaft vibes at your butt. in the wheel or at your butt where are the vibes coming from?
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Old 03-24-2008, 11:03 PM   #14
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could be tire balance
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Old 03-24-2008, 11:06 PM   #15
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kinda what im thinking-- with him saying shakes
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2004 TJ
4" suspension lift
sye/TW driveshaft
NTH degree c/a
2" body lift
aussie locker
Rancho rs9000 shocks
tube bumpers
winch
33x12.50 firestone's
cold air intake
throttle body spacer
rear led's
sony MEX5DI deck
big ol amp
infinity speakers
-------------------> http://miobi.org/main.htm
--------------------> http://www.jocci.com/
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Old 03-24-2008, 11:10 PM   #16
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ya, usually vibration around 60 is tire balance, but it sounded like he got it right after lift installed. did ya get tires at same time?
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Old 03-24-2008, 11:10 PM   #17
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its hard to tell, it doesnt feel like its in the steering as it feels better and tighter now after i just did an alignment. but i also just did the t-case drop and i dont see what could have that out of whack. had new tires put on in the back just before the lift. is it possible that having the rear tires just balanced and the front not has caused this? could i have popped one of the weights off??
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-[Stolen/Totaled]00 TJ Sport, 4.0L, 5spd, D30 - D44, 31x10.5 Dunlop Mud Rovers, 2" Skyjacker BB w/Hydro 7000 shocks
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Old 03-24-2008, 11:13 PM   #18
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ya, have tire balance checked, its possible that new tires weren't balanced good, or old ones are out. happens all the time. if you don't feel steering wheel vibrate, then it is usually rear tires, but tire balance vibe will go away after higher speed70 or 80 USUALLY
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Old 03-24-2008, 11:19 PM   #19
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guess ill be taking that to get checked tomorrow

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-[Stolen/Totaled]00 TJ Sport, 4.0L, 5spd, D30 - D44, 31x10.5 Dunlop Mud Rovers, 2" Skyjacker BB w/Hydro 7000 shocks
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