the 12 jku I picked up had a readylift 4" lift kit on it when I got it from the dealer which mainly consisted of springs and sway bar extensions. My question is can I piece together the rest of the components needed to make it a strong suspension such as upper and lower control arms etc. from different company's like rock krawler or would you guys suggest I just get one whole tried and true kit instead of mix matching parts? Any help would be appreciated.
Mixed Matched suspension
Sarge103
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Whats even funnier than buying a set and breaking out a tape measure is not being able to get the measurements from the manufacturer. LOL You would think with all the parts on hand and engineers available to use the tape measure that it would be easily available information. Instead we get an "estimate" on the amount of adjustability followed by a side note that says by other standards you can adjust them even more. Like you said, "Nice Job".
Having a rear upper that adjusts 1" shorter than factory is retarded, plain and simple.
If 19 3/4" is the minimum on the rear lowers, there wouldn't have been a need for you to get custom arms made to run them at 20 1/4". By RK's "estimate", they would have a maximum length of 20.5" with more room to adjust by SAE standards.
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Sorry, we just don't seem to have the free time you do I guess. Our guys are busy. I just cut and pasted the information out of the instructions.
Or maybe the others are right, you really have a hard on for us. I could suggest some bathroom reading for you if that is the case.
RK
Your lack of time and ability to provide basic information about your product only does a disservice to your customers, I'm not out anything.
RK stated their uppers had an estimated 1.25" not the "1.5"-2" maybe more" that you claim.
You would think that RK would like their fanbois to have the correct information so they can better inform new customers of which parts are needed to avoid having to repurchase parts down the road. :cwm13:
:koolaid:
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RK stated their uppers had an estimated 1.25" not the "1.5"-2" maybe more" that you claim.
You would think that RK would like their fanbois to have the correct information so they can better inform new customers of which parts are needed to avoid having to repurchase parts down the road. :cwm13:
:koolaid:
RK also said this SO....
"By SAE standards you can actually adjust them EVEN MORE, but we just don't like to have too much shank hanging out there as that becomes a point of weakness regardless of shank size"
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We just giving you something to do to occupy all your free time that it seems you have... LOL We figure, while you are hating, keep hating. Someday all that anger inside will cause you to blow up.....RK stated their uppers had an estimated 1.25" not the "1.5"-2" maybe more" that you claim.
You would think that RK would like their fanbois to have the correct information so they can better inform new customers of which parts are needed to avoid having to repurchase parts down the road. :cwm13:
:koolaid:
However, on a serious note....
Since our JK products were released this is the first time we have been asked this question. Seems our arms have worked fine to date for just about everyone and anyone who has needed anything different, we have been more than happy to accommodate..
I have put in a request for them to provide the information so we can post it as soon as possible. Everyone here is super busy with getting products out the door, builds, and upcoming shows and events. It is a mad house actually...
RK
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Good lord Slade you've chased RK and anyone who recommends it all over the internet by now spewing your same rhetoric about measurements and useable joint shank. What is the point and why is it so important to you?
A Jeep at X amount of lift is going to find a happy medium with the same control arm measurements regardless of who's name is on the parts. All of the arms have a specified starting point between everyone's lifts and everyone makes components accordingly. It genuinely DOES NOT MATTER what the shortest or longest length can be if the end user is using the parts in the manner in which the parts were designed to be used.
If you are running your mid arms out way longer than they should be you're weakening anyones components. You're taking strength away from the arm and putting leverage on the now hollow section of arm when you thread the joints way out.
If you don't like the way that RK does it or you don't like their product then move along and run what makes you happy. Your never ending battle with your tape measure doesn't help ANYONE who is interested in ANY suspension system.
What suspension system are you running anyway? Judging by the way you talk you have the most dialed in system on the planet. Let's see it!
Marcus
A Jeep at X amount of lift is going to find a happy medium with the same control arm measurements regardless of who's name is on the parts. All of the arms have a specified starting point between everyone's lifts and everyone makes components accordingly. It genuinely DOES NOT MATTER what the shortest or longest length can be if the end user is using the parts in the manner in which the parts were designed to be used.
If you are running your mid arms out way longer than they should be you're weakening anyones components. You're taking strength away from the arm and putting leverage on the now hollow section of arm when you thread the joints way out.
If you don't like the way that RK does it or you don't like their product then move along and run what makes you happy. Your never ending battle with your tape measure doesn't help ANYONE who is interested in ANY suspension system.
What suspension system are you running anyway? Judging by the way you talk you have the most dialed in system on the planet. Let's see it!
Marcus
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Shoot, we would love to just wheel with Slade to see what he is really all about for real!
RK
RK
You can't avoid a Rock Krawler conversation on JKO and Questioning RK doesn't go over so well.
My questions stem from seeing people that have posted here and elsewhere about adding or wanting to add upper arms and ending up having to replace the lower arms because they are not compatible (I'm sure you've been on the selling end of these issues). Seems pretty shitty to end up having to replace already purchased parts in a kit that RK boasts about being so "upgradeable". It's good for RK and good for the vender that gets to sell another set of arms.
This seems like a pretty unreasonable problem to run into considering quite a few arms have the adjustment to nearly 1" or close to over stock. Then you have kjeeper10 that had to have his arms cut down for them to comfortably fall into the middle... It's known that RK uses a smaller diameter/ shorter shank, so with out any measurements to see the range of their arms all you can do is guess or assume.
This issue is note worthy enough for an RK fan to make note of and warn others about, but don't ask any questions because nobody knows anything to clear the confusion/limitations. Rock Krawler can't specify arm lengths and acts insulted, are confused as to why anyone would even want to know such a thing and will need to call in a team of engineers to figure out the answer. The usual RK minions are coming up with all kinds of measurements that are more or less pulled out of their ass. Even an RK Vender shows up and is useless in answer a question as simple as the Min/Max length of control arms.
As a manufacturer and a vender, you would think that you and RK would want your customers to be able to make an informed decision so the customer who is quite often on a budget can avoid spending money twice.
Trying to redirect attention on to me and what I drive is just pathetic and expected. But does show some true character and arrogance.
I'm not out anything if my question upset you or Rock Krawler. I don't have any intention of doing business with either one of you so none of us are out anything. Just to think, Rock Krawler started out in my top 3....
Free time is nice. As of now, I've been up for 30hrs straight, worked a 12hr shift(+ 1 1/2hrs travel), taken care of my baby while my wife was at work, and picked up a load of fire wood. I do have some free time while waiting on everyone to wake up in the mornings and while my little girl is taking her nap.
Your just flattering yourself to think I'm Angry or anything Rock Krawler keeps me up at night.
It's actually been quite entertaining and funny watching you struggle to answer a simple question like "What is the Min/Max length of you rear control arms?" Nothing tricky or complicated about it, but goddamn have you made it difficult.
It's always fun. Looking forward to your engineering team figuring out how long your arms actually are.
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I said what I did because you are repeatedly bring up a problem for RK's customers that doesn't exist whether you mean to or not. I personally can't figure out your angle when you come into these threads. It wavers between vengeance and misunderstanding and it always ends like this.
So let's get down to the facts. A customer does not have to replace the arms if they don't want to move the axle around. They have always offered a set of shortened uppers (special order) if you wanted to add rear adjustable uppers to a 2.5 Max Travel or a 3.5 Flex System. Now that part has a part number and is easily order-able by anyone interested in that setup.
Not to speak for KJeeper, but he was referring to the upper arms that he ordered to work with his Max Travel rear lowers. He didn't have to cut anything that he already had, he ordered a (at the time) custom set of uppers. It wasn't a problem for him, he didn't want to move the axle back.
The guy that started this thread appeared to be asking about putting adjustable control arms everywhere and mentioned RK. He was likely looking at their Mid Arm Package which is the X-Factor control arm setup + correction wedges. There is no opportunity for error here.
http://www.rockkrawler.com/ProductDetails.asp?ProductCode=RK4098
Look at the listing for their rear lowers. It states right there that they have two part numbers for two applications. Possible room for error, but they do state that they are designed to work with RK's other components.
http://www.rockkrawler.com/ProductDetails.asp?ProductCode=RK2064
I still don't fully understand the concern with minimum and maximum operating lengths and I obviously don't have the measurements, so I don't know how to further address it.
Marcus
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"A customer does not have to replace the arms if they don't want to move the axle around. They have always offered a set of shortened uppers (special order) if you wanted to add rear adjustable uppers to a 2.5 Max Travel or a 3.5 Flex System. Now that part has a part number and is easily order-able by anyone interested in that setup"
well said Marcus
well said Marcus
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I have put in a request for our next website update that the max and min dimensions be added.
What some of you may or may not realize, is that it is not as simple as going out and measuring what we have with a tape measure showing max thread exposure and fully collapsed. Sure, that would work for the exact set of arms I pulled, but not from every set. They will vary slightly from run to run based on our in house manufacturing tolerances, starting with the cut length of the arm, then if it has a bend, the bend angle tolerance which will effect total arm length, finally the weldment if the arm gets welded. If you want us to put something up, it is going to be correct to the best of our ability which will have to take all of the above into account.
RK
What some of you may or may not realize, is that it is not as simple as going out and measuring what we have with a tape measure showing max thread exposure and fully collapsed. Sure, that would work for the exact set of arms I pulled, but not from every set. They will vary slightly from run to run based on our in house manufacturing tolerances, starting with the cut length of the arm, then if it has a bend, the bend angle tolerance which will effect total arm length, finally the weldment if the arm gets welded. If you want us to put something up, it is going to be correct to the best of our ability which will have to take all of the above into account.
RK
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Free time is nice. As of now, I've been up for 30hrs straight, worked a 12hr shift(+ 1 1/2hrs travel), taken care of my baby while my wife was at work, and picked up a load of fire wood. I do have some free time while waiting on everyone to wake up in the mornings and while my little girl is taking her nap.
Your just flattering yourself to think I'm Angry or anything Rock Krawler keeps me up at night.
It's actually been quite entertaining and funny watching you struggle to answer a simple question like "What is the Min/Max length of you rear control arms?" Nothing tricky or complicated about it, but goddamn have you made it difficult.
It's always fun. Looking forward to your engineering team figuring out how long your arms actually are.
Nah, we are not flattering ourselves. Actually we are sitting here doing the same thing you are. Having a good time with it, but we get paid to do it.
If you ever get a chance to come to a wheeling event we are at, you are more than welcome to come out on the trails with us and find out what we are all about. Please bring your rig so we can find out what you are all about. That way there is no web wheeling or BS... We would welcome you on the trail with open arms. After all Jeepin is a community thing..
RK
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That is fine. If they want "rough numbers" we can get those next week. However, when we publish something we want that to be as accurate as possible and as up to date as possible.
RK
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53 Posts
I bought these Rock Krawler JK High Clearance Adjustable Rear Lower Control Arms - RK02064 and set them to 20", and have stock uppers.
I have approximately 3.5" of lift. It changes though depending on how much air is in the spare tire. <<<<----- haha joke.
But seriously, can I get the adjustable uppers and be okay? Rock Krawler JK Rear Upper Adjustable Control Arms - RK02028
BTW, can I get an invite to a run with you guys as well or do I need to be a dick on the internet first? Just kidding SLADE, I don't offroad.
I have approximately 3.5" of lift. It changes though depending on how much air is in the spare tire. <<<<----- haha joke.
But seriously, can I get the adjustable uppers and be okay? Rock Krawler JK Rear Upper Adjustable Control Arms - RK02028
BTW, can I get an invite to a run with you guys as well or do I need to be a dick on the internet first? Just kidding SLADE, I don't offroad.
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5,093 Posts
You want RK04852 for the uppers.
The RK02028 are paired with the x-factor (longer) lowers.
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