Rough Country 2.5" JKU Coils On A 2 Door - JeepForum.com
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Go Back JeepForum.com > Models > Jeep Wrangler Forums > JK Wrangler Technical Forum > Rough Country 2.5" JKU Coils On A 2 Door

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Unread 09-25-2014, 11:28 AM   #1
AdvanZ33
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2004 WJ 
 
Join Date: Oct 2010
Location: , Eastern, NC
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Rough Country 2.5" JKU Coils On A 2 Door

I bought a set of used RC coils today but they are for a JKU. I've read a lot of threads about installing stock JKU coils on a 2 door but not aftermarket coils. Does anyone have any experience with installing aftermarket JKU coils on a 2 door? I'm assuming it will follow the same geometry as the OEM coils and possibly add ~1" to the advertised lift but I really don't want to lift the Jeep more than 3".

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Unread 09-25-2014, 12:15 PM   #2
ncb
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RC coils sag quickly so it might keep your 2 door at 2.5" if you're lucky. The geometry will not remain the same as the OEM coils. The axles will shift and caster will decrease.
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Unread 09-25-2014, 01:14 PM   #3
SLADE
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Similar question asked in another current thread.

http://www.jeepforum.com/forum/f96/w...coils-2724826/


No it's not uncommon to use 4 door/JKU lift coils in a 2 door/JK. Not all companies offer 2 door/4 door specific coils. If they are labeled as a 2.5" 4 door coil you should expect around 1" additional lift to even 1.5" (varies from company to company) when used on a 2 door and you'll have to build around the actual lift height and not just what the coil is labeled as. You can't skimp on components just because it's called a 2.5" lift coil. If you end up with 3.5"+, you'll have to accommodate 3.5"+. The first couple inches of lift is fairly cheap. Once to crest the 3" mark the $1000 per 1" of lift becomes much more accurate and true.
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Unread 09-26-2014, 06:24 AM   #4
AdvanZ33
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Join Date: Oct 2010
Location: , Eastern, NC
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Right on, thanks for the responses. After a little more research and measuring, these RC coils (used and sagged) are 1" taller than OEM coils; front and rear. That, along with the higher spring rate, should put me around where I want to be hopefully and I'll buy supporting mods when I confirm the lift height.
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Tags
2 door vs. 4 door , coil spring , jku , rough country 2.5

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