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Old 11-07-2012, 08:36 PM   #1
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Rusty's control arms

I have a lower rear control arm bushing that's showing signs of needing replaced, so I figure now is a good time to just replace all my control arms. My Dad put Rusty's adjustable rear uppers on his '06 Rubi, and they looked good to me. I'm thinking I'd like to stay with clevite bushings. What's wrong with Rusty's arms? Most things I read about them are negative. FWIW I'm running 2" BDS springs, and don't intend on going any higher.
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Old 11-07-2012, 08:38 PM   #2
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I know, everyone is going to tell me to buy Currie's with JJ's from Savvy.

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Old 11-07-2012, 09:02 PM   #3
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Originally Posted by Patrick H View Post
I'm thinking I'd like to stay with clevite bushings. What's wrong with Rusty's arms? Most things I read about them are negative.
think about the design of the stock arms.

- stamped sheet metal, with bushings on both ends...right?

now go flex your Jeep out, and look at those arms along their long axis.

You'll notice the whole arm twists in torsion, as well as flex the bushing itself....and the stock travel is fairly meager, so the misalignment requirements are pretty small.

Now, take a look at how Rusty's arms are designed.

-bushings on both ends...but what's connecting them together is a rigid steel tube. no more torsion along the long axis like stock.

So what does that mean?

the bushings have to do all the twisting/deflection themselves, and especially on a lifted Jeep with more travel than stock, those bushings get twisted too much. you may even rip the mount off the axle.

Now, how do you fix that problem?

Well, get a control arm that allows major deflection. How? some sort of flex joint.

Ok, now what's a good flex joint that lasts a long time? Well, thats the Currie Johnny Joint.

ok, now what arms use a Currie Johnny Joint? Savvy is one manufacturer, but there are a few more as well.
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Old 11-07-2012, 09:11 PM   #4
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think about the design of the stock arms.

- stamped sheet metal, with bushings on both ends...right?

now go flex your Jeep out, and look at those arms along their long axis.

You'll notice the whole arm twists in torsion, as well as flex the bushing itself....and the stock travel is fairly meager, so the misalignment requirements are pretty small.

Now, take a look at how Rusty's arms are designed.

-bushings on both ends...but what's connecting them together is a rigid steel tube. no more torsion along the long axis like stock.

So what does that mean?

the bushings have to do all the twisting/deflection themselves, and especially on a lifted Jeep with more travel than stock, those bushings get twisted too much. you may even rip the mount off the axle.

Now, how do you fix that problem?

Well, get a control arm that allows major deflection. How? some sort of flex joint.

Ok, now what's a good flex joint that lasts a long time? Well, thats the Currie Johnny Joint.

ok, now what arms use a Currie Johnny Joint? Savvy is one manufacturer, but there are a few more as well.
Ah, so the stock arms need to be weak, basically. Or, at least not rigid. So I'd be better off with new bushings in the stock arms (or new stock replacements) than I would with a rigid arm with rubber bushings..
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Old 11-07-2012, 10:36 PM   #5
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I got some adjustable Tera lowers I could get ya pretty cheap....
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Old 11-07-2012, 11:13 PM   #6
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I got some adjustable Tera lowers I could get ya pretty cheap....
Don't really need adjustables, but I'm listening..? Honestly, I've not researched control arms much yet.
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Old 11-07-2012, 11:15 PM   #7
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These twist in the middle so they flex some besides the bushing deflection, it's not a JJ but they aren't $300 a pair either.... Served me well for 2 years.
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Old 11-07-2012, 11:22 PM   #8
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So, why did you replace them?
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Old 11-07-2012, 11:23 PM   #9
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Much more flex, much better joint, smoking deal on them.
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Old 11-08-2012, 12:33 AM   #10
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I've heard nothing good about rusty's products or customer service and will never do business with him
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Old 11-08-2012, 07:32 AM   #11
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Originally Posted by Patrick H View Post
I know, everyone is going to tell me to buy Currie's with JJ's from Savvy.


Although I've only replaced my front LCAs, I'm very pleased with the Currie JJ arms, on and off road.
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Old 11-08-2012, 08:27 AM   #12
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Here's the deal- I need rear lower bushings. Seems silly to replace with stock when I want to upgrade at some point, but money is tight right now. If money weren't an issue, I'd just order 8 Currie arms and be happy.
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Old 11-08-2012, 08:36 AM   #13
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Originally Posted by Patrick H View Post
Here's the deal- I need rear lower bushings. Seems silly to replace with stock when I want to upgrade at some point, but money is tight right now. If money weren't an issue, I'd just order 8 Currie arms and be happy.
buy new stock replacement arms and be done with it.
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Old 11-08-2012, 10:43 AM   #14
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Rustys says they use Clevite bushings. The two bushings on the left are Rustys and have about 5k street miles on them. The bushing on the right is a stock Clevite bushing that was on the same vehicle for 20k miles. I'm no fan of real Clevite bushings but I'd take them over any imitation bushing and just about any second-rate flex joint. Either go with stock replacement arms or Currie JJ's. It's that simple. Wasting $600 on an inferior set of arms is much more foolish than spending $1000 wisely on parts that will last for years and years with no maintenance at all. Anyone who disagrees with that doesn't know the first thing about the true meaning of value and FTQ.

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Old 11-08-2012, 10:51 AM   #15
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buy new stock replacement arms and be done with it.
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Ya, the current stock ones lasted what, 12 years? If you are on limited funds, stock replacement arms should serve you well until you are ready to upgrade.

I'm sure you have access to a good press... if your arms are OK, you can just get the replacement clevite bushings for even less. Press the old ones out, new ones in...
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Old 11-08-2012, 11:06 AM   #16
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Ya, the current stock ones lasted what, 12 years? If you are on limited funds, stock replacement arms should serve you well until you are ready to upgrade.

I'm sure you have access to a good press... if your arms are OK, you can just get the replacement clevite bushings for even less. Press the old ones out, new ones in...

Yes, of course I have a press. I can see it from right here. For the price of stock replacement arms from Rock Auto, though, it seems silly not to just buy them. That said, I guess I'm going to give some "lightly used" Teraflex arms a try. Price was right, so I'll try them out. By the time I decide I don't like them, if I do, the money spent will be a distant memory..
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Old 11-08-2012, 11:28 AM   #17
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Yes, of course I have a press. I can see it from right here. For the price of stock replacement arms from Rock Auto, though, it seems silly not to just buy them. That said, I guess I'm going to give some "lightly used" Teraflex arms a try. Price was right, so I'll try them out. By the time I decide I don't like them, if I do, the money spent will be a distant memory..
Not to dissuade you from a purchase it sounds like you already made nor to insult on DevilDog, but if these are the arms I'm thinking of.....



....they're about as crappy as they come and are basically joked about in the Jeep community. Stock arms are much better.
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Old 11-08-2012, 11:40 AM   #18
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Yeah, too late now. He said "they served him well" so I figured they'd be OK. I guess I'll try them, and plan on ordering some stockers. 'Course by then I could have almost bought a pair of Curries.
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Old 11-08-2012, 11:44 AM   #19
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Actually they're a bit different than those. Two zerks on the arm itself, etc. I don't know. Teraflex has been selling them for at least 14 years or so..

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Old 11-08-2012, 11:49 AM   #20
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Eh, I'll give 'em a try.
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Old 11-08-2012, 12:08 PM   #21
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The issue at hand is they supposedly tear the control arm mounts on hard wheeling which I suppose could happen but not everyone wheels as hard as you Imped. I ran these for 2 years and about 35000 miles and my mounts are intact. Patrick, from the looks of your rig I wouldn't think you wheel as hard as I do so I think you'll be fine, I kept them greased up and did not have a single issue.
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Old 11-08-2012, 12:22 PM   #22
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Eh, I'll give 'em a try.
them be infamous mount destroyers.
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Old 11-08-2012, 12:27 PM   #23
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How do they destroy mounts? Are the poly bushings too stiff/rigid?
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Old 11-08-2012, 12:33 PM   #24
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How do they destroy mounts? Are the poly bushings too stiff/rigid?
remember that long axis twisting I was talking about?

well that's not the only direction you need to worry about. The axle also moves side to side throughout the suspension cycle - because the track bar pulls/pushes the housing...so the deflection not only needs to account for longitudinal torsion, but lateral misalignment as well, at the same time.

poly bushings do a very poor job at this because they're generally too stiff/rigid.
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Old 11-08-2012, 12:51 PM   #25
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Well crap. Looks like I jumped the gun without doing my research. I should have just sucked it up and ordered the Currie rears. My front bushings are fine right now, but I figured this would put me with all four lower arms for cheap.
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Old 11-08-2012, 01:13 PM   #26
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Actually they're a bit different than those. Two zerks on the arm itself, etc. I don't know. Teraflex has been selling them for at least 14 years or so..
Same arms where it matters man......

And how hard you, I, the OP or the random guy on the street corner wheel is neither here nor there. Those arms are flawed in just about every category and those flaws aren't only exposed when wheeling.

OP, research is your friend.

These are good control arms:


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Old 11-08-2012, 01:19 PM   #27
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Yep. Kicking myself in the ass right now. Between what I paid for those and what the stock replacements are going to cost me, I could have almost bought a pair of Curries. Son of a bitch. My own fault for not doing my research (I've read enough by now though)
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Old 11-08-2012, 01:23 PM   #28
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I "always" research before I buy if I don't yet know what I'm doing. Just not today. FWIW I feel I paid a fair price vs. new, exepting for the fact that I won't use these now.
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Old 11-08-2012, 01:30 PM   #29
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I "always" research before I buy if I don't yet know what I'm doing. Just not today. FWIW I feel I paid a fair price vs. new, exepting for the fact that I won't use these now.
throw them on craigslist, hopefully you can get your money back. we've all bought stuff that turned out to be a mistake...I know I've wasted quite a bit for various reasons.
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Old 11-08-2012, 02:38 PM   #30
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Just to keep some clarity here, DevilDogDoc did me no wrong. He offered some parts to me at a fair price, and even negotiated a bit, and I bought them. He's also offered to help me out further with this. I just wanted to make sure folks know there was no wrong done with this deal.

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