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Old 09-13-2010, 01:17 AM   #1
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drive shaft???

I have a 94 yj with a stock lift on it. I'm getting ready to put a 4 inch lift on it and was wondering if I have to do anything speacial to the drive shaft? I'm doing a rough country suspention lift if that makes any difference.

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Old 09-13-2010, 05:53 AM   #2
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4" is a good amount of lift. its not uncommon for folks to experience driveline vibrations at that height. however, it's easily corrected with a TC drop, or new driveshafts and control arms.

one other issue that may arise is caster. DW may come as the higher you lift the more caster you lose. you'll run out of adjustment and will need more to correct crappy handling and/or DW.
via control arms.

none of these are carved in stone, but they are common issues you might run into lifting up to that height.

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Old 09-13-2010, 06:03 AM   #3
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Quote:
Originally Posted by GroundHawg View Post
4" is a good amount of lift. its not uncommon for folks to experience driveline vibrations at that height. however, it's easily corrected with a TC drop, or new driveshafts and control arms.

one other issue that may arise is caster. DW may come as the higher you lift the more caster you lose. you'll run out of adjustment and will need more to correct crappy handling and/or DW.
via control arms.

none of these are carved in stone, but they are common issues you might run into lifting up to that height.
Read again...Its a YJ.......

That being said... your drive shaft should be okay with a t-case drop.. You might want to think about a SYE kit down the road and as always depending how old your driveshaft u-joints are you might want to replace them. I am putting the same lift on and so far is going well, lots of rusty bolts but no major install problems.
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Old 09-13-2010, 09:14 PM   #4
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huh? lol

what am i missing? caster can be adjusted via CA's or shims, TC drop maybe if you get vibrations...

what'd i miss?

EDIT: ah nevermind. CA's. i ment shims

i've seen a YJ though with arms on it. just one. i'm not sure though if they're homemade, custom, bought, or what.

i'm only half wrong
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Old 09-14-2010, 01:32 PM   #5
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so just for right now putting the lift on, do i have to do anything special right now before it goes on or am i good for a little while?
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Old 09-14-2010, 01:48 PM   #6
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You won't know if you need to make the rear shaft longer until your lift is on...the front shaft will be fine
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Old 09-14-2010, 02:52 PM   #7
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so i just did more research and it looks like getting a 4" lift will cost alot more in the future because of all the things i will have to do on it right? so even tho the RC 4" cost the same as the 2 1/2" lift, i wont have to worry about changing anything for the 2" right?
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Old 09-15-2010, 07:55 PM   #8
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i think you'll be fine at 2". every Jeep's a bit different, but i'd say TC drop at the most. you'll probably get by with a stock suspension though.
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Old 09-17-2010, 05:58 PM   #9
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Man I done a 4inch longarm rc with no changes to my driveline havent had any probs your jeep might be different i dont know

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