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Old 03-19-2011, 09:28 PM   #1
Join Date: Mar 2011
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4'' suspension

I have a 1990 wrangler and i want install a 4'' suspension lift. Will i have to change my drive shaft or axle or anything?

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Old 03-19-2011, 09:46 PM   #2
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nope you can get by with running stock

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Old 03-20-2011, 01:21 AM   #3
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Agreed. The 4" kit should come with a transfer case drop bracket that will help in keeping your rear pinion lined up properly. Some people have had to get a SYE and CV driveshaft to eliminate driveline problems though. Take a look at the lift kit review thread that is a sticky on the top of this forom topic. Good luck with your install and welcome to the forum.

Mall crawlin' in 4 Lo.
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Old 03-20-2011, 03:46 AM   #4
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Thank you for your help this has helped me alot. Do driveline problems occur frequently with 4'' lifts though or is it pretty rare for it to happen?
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Old 03-20-2011, 11:25 AM   #5
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I just got a 4" pro comp lift and I HAD to get a sye kit and a custom cv driveline installed... and the 2.5 degree wedge that came with the lift wasn't enough, had to have that configured as well in order to get the right pinion angle!
Not saying you need to do the same, but be prepared to spend the extra clams in case you do need to do the upgrades...
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Old 03-20-2011, 02:03 PM   #6
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I put on a Rough County 4" yesterday, kit had everything we needed, so far no issues
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Old 03-20-2011, 09:07 PM   #7
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I've got a 4" RC lift with a 1" RC lift shackle with no SYE just a t-case drop and I haven't had any issues.
You're never to old to have toys!
'90 YJ, 4" RC Suspension lift, 1" Shackle lift, SYE and CV, Holley Carb, 33/12.50/15 Dynapro M/T's. RIP my old friend.
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Old 03-20-2011, 09:12 PM   #8
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Ok cool thats what i have heard so i think I'm going to buy the 4'' Rough Country with the t-case drop and just install it myself.
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Old 03-20-2011, 10:21 PM   #9
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Originally Posted by YJ0417 View Post
Ok cool thats what i have heard so i think I'm going to buy the 4'' Rough Country with the t-case drop and just install it myself.
I just ordered the 4" RC lift kit for my 94 from ebay seller had it for $449.00 + $65.00 shipping ,I made an offer of $400.00 we agrred on $410.00 plus the shipping .

1994 Jeep Wrangler YJ 2.5 5 spd .Painted camo green , 4" Rough Country suspension lift ,32 x 11.50-15 Nankang Mudstar M/T tires on steel stock rims painted black .Home fabbed bumpers with front and rear tow points .Maradyne electric engine fan .
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