quick question about a flex joint end on my lcas... - JKowners.com : Jeep Wrangler JK Forum
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post #1 of 2 Old 06-21-2010, 09:15 PM Thread Starter
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quick question about a flex joint end on my lcas...

OK, so I am installing my Rusty's lower control arms and my Poly Performance uppers this week...

I have a quick question....I haven't even got to the polys yet, but my rusty's lowers have a flex joint end on one end, looks quite a bit like a johnnie joint to me, anyway, its very flexible and moves a lot, but it also talks about preload and if I want to change that and it has a lock screw, I think, anyway, my question is this...do I simply bolt this dang thing in once I get it at the length I want, or do I need to do something to the flex joint before I do....thanks

I know, I know...I am learning as I go :shakes:

2007 Jeep Wrangler X, Auto, Hardtop, White, Superchips Flashpaq, 2" OME HD springs, Rusty's Adj. F/R trac-bars, Bilstein Steering Stabilizer, JKS Quicker Disconnects, JKS Rear Swaybar Extensions, PolyPerformance UCAs f/r, Rusty's LCAs f/r, 33x12.5 BFG KM2s, ProComp 15x8 Rockcrawlers, Smitty winch, Body Armor Front Bumper, FLW SS rear bumper, OEM Rubicon Rock Rails, Skid Row Engine and Tranny Skid, Member UFWD & BRC, †John 3:16†

Last edited by yoda13; 06-21-2010 at 09:31 PM.
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post #2 of 2 Old 06-23-2010, 01:25 PM
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The vendor probably set the preload before you got it. If the ball feels secure and you can move it by had with a long bolt on the bench it's good.

On the bench, grease it well and work the ball that the same time. You will need to set the preload again in a month or two depending on how hard you wheel. They will loosen up and start to groan/squeek when it's time.

I don't run Rusty's but I run Ballistic Joints (designed close) and this is what I've learned through trial and error. Ballistic also recommends 20ftlbs of preload.

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