JKS adjustable control arms - North American Grand Cherokee Association

johnand · 07-10-2002, 12:57 PM

I was just browsing JKS's website and came across their adjustable control arms.

They appear to be pretty beefy as well as great riding (rubber bushings both ends) and good articulation (pivots on threads). They look simular to Rusty's that seem pretty popular, but they don't use the ACME threads like Rusty's.

Anyone have these? How come I have never heard of them, must not be very many that have tried them.

chadjans · 07-10-2002, 01:07 PM

They look very similar in design to Tera's arms. i.e. covered internal threads, tight high TPI on the threads, grease fittings, no lock nut. These are better than Rusty's as far as the covered high TPI thread. Although time will only tell on them lasting as far as thread wear. Good find John

Chad

johnand · 07-10-2002, 01:46 PM

Chad,

I was also thinking you could add a jum nut and lock them down on-road, then loosen the jam nut off-road. That would probably cut down on the wear conciderably.

chadjans · 07-10-2002, 01:49 PM

I don't know if running a jam nut is possible. For I am not seeing any exposed threads on the JKS arms.

Chad

pair8hd · 07-10-2002, 06:24 PM

I have a set of the JKS LCA's on my XJ and they are very nice and BEEFY
Here's a product review on them--->http://www.dpgoffroad.com/ProductReviews/JKSlcas.htm

johnand · 07-11-2002, 07:02 AM

Chad,

After the link that pair8hd posted (Thanks

), with better pics of them, you are right, there is no threads exposed for a jamb nut.

From that review, these look to be the hot ticket for control arms today. Only time will tell how they hold up. If they are near the same quaility as their QD's and trackbars, these should be the control arm of choice.

Jeepers007 · 07-12-2002, 12:54 PM

I'm a little skeptical because of one thing, and maybe pair8hd can answer. If the Rusty's arm also articulates, why would there be binding as shown in the pictures? Is it just the finer threading of the arms that enable the JKS's to articulate without resistance?

ZJohnR 5.9 · 07-12-2002, 01:03 PM

That's what I had first thought (and thinking, "oh crap", cause I have some of Rusty's Adj. arms)...But, if you notice, they are the fixed arms he is showing....plus, he must've really put them through the test

As far as those arms, they look real nice...too bad they are so dang expensive, otherwise I'd like to try them...The Rusty's arms work good, but with the ACME thread and where it's located, there is alot of slop (read: noise that drives me crazy

)....To be fair though, my bushing sleeves (the part where it goes into the arm) are worn a little, so some noise can be coming from there (sounds like the arms are loose, even though they are not)...I just put new bushings in, but they make noise as well...

BTW - is this a ripoff of the TeraFlex arms? Haven't heard too many good things about those, but I'm not sure how true those are (as a general rule)

MikeyM · 07-12-2002, 04:56 PM

Tell you what.. they look like they would last a loooong time if properly maintained. Greasing the threads is paramount to a piece that is subjected to that kind of load. Plus the bushings never really twist.. the CA does all the work. Sounds like a fairly reasonable investment for another 100K miles or so, eh?

Mike

Skippy · 07-13-2002, 05:24 AM

I notoiced that JKS has UCA too. Would this help with some of the problems that come along with the S4W lift for the WJ? Would the UCA be a netter alternative then Claytons if the money wasnt there?

07-10-2002, 12:57 PM	#1
johnand Senior Member Grand Junkie Join Date: Feb 2002 Location: Camas, WA Posts: 484	JKS adjustable control arms I was just browsing JKS's website and came across their adjustable control arms. They appear to be pretty beefy as well as great riding (rubber bushings both ends) and good articulation (pivots on threads). They look simular to Rusty's that seem pretty popular, but they don't use the ACME threads like Rusty's. Anyone have these? How come I have never heard of them, must not be very many that have tried them. __________________ John Anderson 98 ZJ Laredo SE

07-12-2002, 01:03 PM	#8
ZJohnR 5.9 Senior Member Grand Junkie Join Date: May 2002 Location: Downey, CA Posts: 220	That's what I had first thought (and thinking, "oh crap", cause I have some of Rusty's Adj. arms)...But, if you notice, they are the fixed arms he is showing....plus, he must've really put them through the test As far as those arms, they look real nice...too bad they are so dang expensive, otherwise I'd like to try them...The Rusty's arms work good, but with the ACME thread and where it's located, there is alot of slop (read: noise that drives me crazy )....To be fair though, my bushing sleeves (the part where it goes into the arm) are worn a little, so some noise can be coming from there (sounds like the arms are loose, even though they are not)...I just put new bushings in, but they make noise as well... BTW - is this a ripoff of the TeraFlex arms? Haven't heard too many good things about those, but I'm not sure how true those are (as a general rule) __________________ 98 Grand Cherokee 5.9...1 , 2

07-12-2002, 04:56 PM	#9
MikeyM Senior Member Grand Junkie Join Date: Feb 2002 Location: Nor Cal Napa Valley Posts: 290	Tell you what.. they look like they would last a loooong time if properly maintained. Greasing the threads is paramount to a piece that is subjected to that kind of load. Plus the bushings never really twist.. the CA does all the work. Sounds like a fairly reasonable investment for another 100K miles or so, eh? Mike __________________ '98 ZJ 5.2, tow package, Rusty's coils - 4" lift, 31" BFG KMs, OME shocks & SS, ORGS adj. TBs, full skids, QDs, Yakima rack with goodies. Etc, etc.

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07-10-2002, 01:07 PM	#2
chadjans Senior Member Grand Master Join Date: Feb 2002 Location: Arizona Posts: 1,202	They look very similar in design to Tera's arms. i.e. covered internal threads, tight high TPI on the threads, grease fittings, no lock nut. These are better than Rusty's as far as the covered high TPI thread. Although time will only tell on them lasting as far as thread wear. Good find John Chad

07-10-2002, 01:46 PM	#3
johnand Senior Member Grand Junkie Join Date: Feb 2002 Location: Camas, WA Posts: 484	Chad, I was also thinking you could add a jum nut and lock them down on-road, then loosen the jam nut off-road. That would probably cut down on the wear conciderably.

07-10-2002, 01:49 PM	#4
chadjans Senior Member Grand Master Join Date: Feb 2002 Location: Arizona Posts: 1,202	I don't know if running a jam nut is possible. For I am not seeing any exposed threads on the JKS arms. Chad

07-10-2002, 06:24 PM	#5
pair8hd Junior Member Grand Rookie Join Date: May 2002 Location: Derby, Kansas Posts: 17	I have a set of the JKS LCA's on my XJ and they are very nice and BEEFY Here's a product review on them--->http://www.dpgoffroad.com/ProductReviews/JKSlcas.htm

07-11-2002, 07:02 AM	#6
johnand Senior Member Grand Junkie Join Date: Feb 2002 Location: Camas, WA Posts: 484	Chad, After the link that pair8hd posted (Thanks ), with better pics of them, you are right, there is no threads exposed for a jamb nut. From that review, these look to be the hot ticket for control arms today. Only time will tell how they hold up. If they are near the same quaility as their QD's and trackbars, these should be the control arm of choice.

07-12-2002, 12:54 PM	#7
Jeepers007 Senior Member Grand Junkie Join Date: Mar 2002 Location: Cypress, TX Posts: 249	I'm a little skeptical because of one thing, and maybe pair8hd can answer. If the Rusty's arm also articulates, why would there be binding as shown in the pictures? Is it just the finer threading of the arms that enable the JKS's to articulate without resistance?

07-13-2002, 05:24 AM	#10
Skippy Senior Member Grand Junkie Join Date: Jan 2002 Location: Parker, CO Posts: 116	I notoiced that JKS has UCA too. Would this help with some of the problems that come along with the S4W lift for the WJ? Would the UCA be a netter alternative then Claytons if the money wasnt there?

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