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Rear coil problem with RK 2.5" Max Travel kit. Please help!

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Old Nov 17, 2012 | 08:40 PM
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Default Rear coil problem with RK 2.5" Max Travel kit. Please help!

Alright, as some of you may or may not know, the rear springs on my recently installed RK 2.5" Max Travel kit have been completely falling out when the rear axle is fully flexed. The only working theory I have is that the Fox 2.0 IFP shocks for 4-6" lifts -- which I selected based on the recommendation of several vendors and experienced members on several forums -- are simply too long for this kit.

I'm willing to make these shocks work, though, so I just need help with a few things:

1. Is anyone else running this specific kit and shock combination on a newer JK? (Mine is a 2013 JKUR) If so, are you also experiencing the same problem? Did you solve it?

2. I contacted RK and an engineer there suggested I order the Currie JK Rear Coil Spring Retainer Kit -- so I did. Since then, I've read several threads on various forums wherein owners of newer JK's were not able to install the upper retainer included in the Currie kit. Has anyone here successfully used this kit on a 2011-2013 JK? (I plan to call Currie on Monday to discuss this, but I figured I'd ask here first).

3. Is the Currie kit really the best solution, or did the RK technician steer me wrong?

Any help or info would be much appreciated! This problem is keeping me off the trails right now, which really pisses me off, so I'm desperate to address this situation correctly.

Thanks ahead of time!

Last edited by palehorse; Nov 17, 2012 at 08:44 PM.
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Old Nov 17, 2012 | 09:41 PM
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There are spring retention straps that I'm planning on buying instead of the coil retainer metal plates.

I feel as having my axle held in place by the axle, and not by my spring is the safer way to go. I've heard "stories" of the coil retention plates stretching the springs with heavy tires and axles.

Sorry I couldn't be more help other than hearsay.
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Old Nov 17, 2012 | 09:44 PM
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Originally Posted by Delux2769
There are spring retention straps that I'm planning on buying instead of the coil retainer metal plates.

I feel as having my axle held in place by the axle, and not by my spring is the safer way to go. I've heard "stories" of the coil retention plates stretching the springs with heavy tires and axles.

Sorry I couldn't be more help other than hearsay.
What straps are you planning to use, and how/where are they installed? Have any links?

Thanks for the help!
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Old Nov 18, 2012 | 04:52 AM
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I suppose another way of dealing with this is swapping out your bumpstops (go with longer bumpstops) to limit the shock travel since its the shocks that are too long for your lift. I'd be worried about what will happen to the coils if you keep over extending them because your shock travel is too long but the coils are held in place by retainers. I don't know if its bad but it sounds like it would be.

And check you link length as well. Can you shorten them to limit travel that way? Or are you running with no rear sway bar?
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Old Nov 18, 2012 | 05:09 AM
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What about swapping out the shocks for something more appropriate for your lift size? I just went up in size and need longer shocks. I had a 2.5 inch RK Max Travel and went to 3.5" plus 1 inch spacers. I have Bilstein 5100's nd the are only 6 months old. Interested? Jim
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Old Nov 18, 2012 | 05:35 AM
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Originally Posted by mpkelley20
I suppose another way of dealing with this is swapping out your bumpstops (go with longer bumpstops) to limit the shock travel since its the shocks that are too long for your lift.
THIS is the solution ^.
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Old Nov 18, 2012 | 06:10 AM
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Originally Posted by CEC_LDO
THIS is the solution ^.
Thanks for the idea guys, but I'm already running 3" bumpstops front and rear. If I go any longer, I'd have no space left between the stops in the rear.

I think I may have to go with the lower retainer from the Currie system (if the uppers don't fit) combined with some limiting straps...?

Last edited by palehorse; Nov 18, 2012 at 07:09 AM.
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Old Nov 18, 2012 | 06:17 AM
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I'm still wondering what damage you are doing to coils by over extending them like that. They pop out for a reason so locking them in with retainers just seems like it will wreck them. Maybe not but I'd like to hear from others.

Also, are you running a rear sway bar?? Still think your links could be adjusted.
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Old Nov 18, 2012 | 06:21 AM
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Bump stops are going to limit the up-travel of the suspension.

Limit straps are going to limit the down travel.

Normally the shock limits the down travel, but having the wrong shocks (too long) can be corrected cheaply with limit straps.

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Old Nov 18, 2012 | 06:25 AM
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I think the suggestion was some type of coil retention strap rather than limiting strap. Maybe I'm confused but they seem like 2 different things unless its just terminology. But yes, limiting straps can definitely help. I know people who run them in the front, not the rear but it would work the same.
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