Rubicon 3715 Control Arms

ARBSeth · **Posted:** Wed Oct 26, 2005 2:37 pm

Ok, I have 265s on the 02 now. We rigged ARB TJ rear shim packers in the back to get a little extra lift out of it. I'll do a write up on it sometime, and Quinn will be carrying them soon so you can get some if you want. Still sort of testing them to make sure it's reliable... with those and OME struts on the Frankenlift (ours sit slightly higher in the front than the Ranchos) you can get 265's under them without rubbing. Anyone who was looking at mine at the Super Secret run saw mine was about an inch taller...

Anyway, with that much lift in the rear, the control arms are too short. The rear tires sit a little too close to the front of the well and will touch at full stuff. Quinn tells me I can run the Rubicon Express 3715 arms with the Super Flex Joint on the back without any problems. I guess he has done it for a few of us already...I called Sean at RE, got the dimensions, and they'll fit, plus I can extend them out a little to push the rear axle back a touch. Should fix the problem...loses the rear sway bars, but I'm not losing any sleep over that.

Anyway, I'm trying to find the guys that have em on already and see how the Super Flex works? Those suckers have some TRAVEL and I was wondering if it has caused anyone trouble (Lost coils...blown shocks...etc) before I throw em on this weekend. Trying to decide if I need limit straps or not...

Jeepin Al · **Posted:** Wed Oct 26, 2005 3:05 pm

Hey Seth,

I have around 5.5 inches in the rear now, and the Rusty's arms as I described in the fab posts. The only worry I would have is the top ball joint and the "boomer-rang". I remember some old posts on guys breaking them due to lift and flexing. I did pop a spring when I tore off a shock mount in the rear. The stock arms are way too short. Right now I have my Rusty's arms set at 18" center to center of the bolt holes. The pinion is still off, and its vibrating pretty good 70 mph. I will be installing a Tom Woods slip yoke and drive shaft soon. Hopefully that will get rid of the vibration.

So expect vibration, and upper ball joint problems with anything over 4 inches.

BTW I replaced my upper ball joint with a 2" daystar flex joint welded to the "boomer-rang" and I fabed up a new mount on the differential to accept the flex joint.

Al

skrracing · **Posted:** Wed Oct 26, 2005 5:29 pm

I am running the RE rear control arms and love them. No problems at all and it lets it flex like crazy. Again...no problems at all. later...Clint

ARBSeth · **Posted:** Wed Oct 26, 2005 5:34 pm

Nuts....

I should have asked you while I was down there...ok, I feel better now.

Thanks Clint!

USAFCOP · **Posted:** Wed Oct 26, 2005 9:46 pm

so these are adjustable? How do you know if you have the length right? just trial and error until you have the least driveline vibration?
Or should they come preset?

skrracing · **Posted:** Wed Oct 26, 2005 10:12 pm

When i did my install. i just set them to the same length at the stock ones and it has worked great. no vibrations or any problems at all. They do flex a heck of a lot more than the stock arms. I have been very pleased with them. later...Clint

jpzkj · **Posted:** Wed Oct 26, 2005 11:13 pm

Same here...same lenght as stock.

They add a TON more flex than stock , but do not allow you to use the stock swaybar since there are no mounting points for it.

USAFCOP · **Posted:** Wed Oct 26, 2005 11:57 pm

if they are the same length, how do they allow more flex (other than the lack of swaybar) do they actually twist on the threads with the axles downward/upward motion?

jpzkj · **Posted:** Thu Oct 27, 2005 12:04 am

Go to RE's website and look at them. It's all about the ends on the arms...they rotate.

"All "Super-Flex" Control Arms feature our rebuildable spherical bearing assembly. This assembly features a large 2.25" polymer race that encapsulates a 1.75" hard plated steel bearing. A threaded steel insert allows adjustable preload and easy maintenance. The unit is greasable and extremely quiet due to the non-metallic races. This bearing allows extra flex for off-road prowess, yet does not sacrifice on-road handling or long term durability. Unleash the full potential of your Jeep with the addition of "Super-Flex" Control Arms from Rubicon Express'

http://www.rubiconexpress.com/dynamic/mainpage.asp?folderid=1305

broncsrule · **Posted:** Thu Oct 27, 2005 12:10 am

Seth, do you have any recent pics of your KJ. I would like to see your set-up. Thanks.

USAFCOP · **Posted:** Thu Oct 27, 2005 12:20 am

thanks jpz...

all this KJ stuff.... and i thought I was going to pay off the malibu in January! :roll:

FreedomKJ · **Posted:** Thu Oct 27, 2005 12:39 am

Al: Details on your current setup plus pics would be much appreciated. I'm to broke to do any more mods right now, but I'm using my extra time to better plan out what I do once I find a job (anyone wanna hire me?)

Have you considered fabbing a custom rear UCA (boomerang) with better angles for the joints (and possibly a bit longer?)

Jeepin Al · **Posted:** Thu Oct 27, 2005 8:31 am

Hey Guys,

I wrote a posting a while back, please look at the posting under Lift Experiment a couple of pages back.

http://www.lostjeeps.com/forum/phpBB3/vie ... php?t=1664

Al

ARBSeth · **Posted:** Thu Oct 27, 2005 11:09 am

I'm actually planning on using them to push mine back a little. The extra shim packers I put on have them riding a little too close to the front of the fender wells, and it causes a little rubbing. As for making sure they're right, it's pretty much trial and error unless you want to do the math to get the length right, and even then it doesn't always come out....just be sure to keep them the same length if you make any changes and it won't mess up your ride.

As for pictures, I emailed one to Clint...Clint, I don't think it would hurt to post that one here...think you could host that for me? Thanks man! Or could someone PM me the site to use to host a picture? Our website is Copywrited... can't do it from there.

broncsrule · **Posted:** Thu Oct 27, 2005 11:03 pm

Thanks for your efforts Seth!

skrracing · **Posted:** Thu Oct 27, 2005 11:47 pm

Here you go. later...Clint

ARBSeth · **Posted:** Fri Oct 28, 2005 11:14 am

OK, check it out...

That's my rig. 265's...with the OME Struts running the Frankenlift and the shim packers Quinn and I modded up on the back. Also notice the "Way too heavy" Bull Bar w/ an M8000 in it.

The tires don't rub, I have full steering in the front...you'll need spacers or new rims to run 265's.

Myth= Bull Bar weighs 150 lbs.

Fact= Really only weighs about 75 pounds

broncsrule · **Posted:** Fri Oct 28, 2005 1:37 pm

Very cool. So you use wheel spacers behind those stock Renny rims?

ARBSeth · **Posted:** Fri Oct 28, 2005 1:46 pm

Sure did. Not my first choice, but they're holding up fine. We chose to keep the Green Rims for looks... SpiderTrax makes some really nice ones, and it widens the stance by 2.5"

FreeJeep · **Posted:** Fri Oct 28, 2005 1:55 pm

Ordered the rear arms. Any tips on installing them. Looks pretty straitforward.

Thanks,

Rubicon 3715 Control Arms

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