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Old 08-05-2013, 01:48 PM   #1
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Mixing AEV 2.5" lift with Rock Krawler Lower Control Arms

Does anyone have experience using Rock Krawler front lower control arms with an AEV 2.5" lift? I'm beating up my OEM lower control arms crawling around on the rocks. I'm generally happy with my AEV lift kit but am considering using RK's lower control arms which offer better rock clearance.

RK says it can be done. AEV has heard of people experimenting with it.

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Old 08-05-2013, 01:57 PM   #2
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I dont see why not. If you have the aev's control arm drop brackets, you have to check if the rk control arms thread down to stock length in order to keep the brackets.

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Old 08-05-2013, 02:07 PM   #3
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Regular- non-adjustable RK arms will work. I did not like the tire clearance on the front but they are curved more for ground clearance. I now use Rokmen arms since they go to stock length even though they are adjustable. Metalcloak does too. The RK adjustable rear arms do not go to stock length, but I guess you are just talking about the front.

Recently, I started to use the AEV drop brackets. They work very well. However, they are a bit lower than the stock mounts and may be lower than any other point in the control arms. Do you really need the ground clearance, knowing that any arms will be higher than that mount point? The stock arms are the most comfortable and long-lasting.
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Old 08-05-2013, 02:33 PM   #4
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Thanks gsn & HK. After posting here I found a related discussion on the AEV user forum. Yes, only talking about front control arms. RK said their 2 1/2" lift kit lower control arms should fine; otherwise, I can order them cut to spec.

Point taken about the front mounting points being the lowest point. However, I am finding myself landing on those controls arms more than I'd like. Right now, I'm just exploring my options. The AEV tech support echoed what you (Hk) said about pavement ride quality and bushing life.
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Old 08-05-2013, 02:54 PM   #5
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Try to get the new RK joints, if possible. They seem to "look" more durable. The old joints were/are not particularly so. Even the good local shops will tell you the truth about joints here. The hacks will not, and will push the stuff they sell the most. Teraflex joints seem to last very long. They may be their own joints. I don't know much about the joints but a lot of locals run those, along with Rokmen arms which have super thick tubing so the crawlers use those a lot. A few run Clayton...also very tough arms. Good luck and keep us posted.
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Old 08-13-2013, 05:35 AM   #6
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I've been up on the Metal Cloak website drinking their Kool-Aid. Their joints seem to be very long lasting and more or less maint free. I'll probably pick up a pair of their LCAs in the near future.
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Old 09-12-2013, 06:37 AM   #7
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I have a full lower set of RK adjustable LCAs that have great on road manners. Very nice driving and my JKU is my daily driver. I drive 60 miles one way several days per week on I66 and 495 and it is very smooth. They came with the 2.5" Max Travel kit and you can get them separately.

Their new joints are basically maintenance free and can be rebuilt if necessary. I have seen shops post that they have had much less trouble with RK joints over Teraflex, so who knows.

As far as the brackets go, why would you keep them on if you put on adjustable LCAs? There really is no reason for it. With the adjustable LCA you get your caster angle back and have a nice on pavement ride.

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