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Suspension Advice for JLUR XR

slowpoke387

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Explore the Gladiator Rubicon Fox shocks.

They completely transformed my ride compared to red Rubicon shocks. They are ‘’valved’’ much smoother. Combined with 32 psi and washboard dirt roads arent the same.
You mean stock Gladiator Rubi shocks? Interesting.
Edit: Just saw you said Fox. Still interesting lol.
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Steph1

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You mean stock Gladiator Rubi shocks? Interesting.
Edit: Just saw you said Fox. Still interesting lol.
Yes, Gladiator Rubi shock are fox shocks. But not the same as the 2’’ lift, much smoother than that too.
 

slowpoke387

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Yes, Gladiator Rubi shock are fox shocks. But not the same as the 2’’ lift, much smoother than that too.
So from a non XR Gladiator Rubicon. Do they even make XR Gladiators (or the equivalent)? They'll work on an XR? Sorry for the questions, never too old to learn.
 

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Your caster must have been less than 4 stock then. Hard to understand why they don't use those LCA's from the factory. I've heard that too, but also that the regular Rubicon Fox shocks are junk too. My 392 rides better than my Rubicon did. Handling seems similar.
Regular Rubicon does NOT have Fox shocks, neither do any of the XR packages incl 392.

Only regular 392 has Fox 2.0 monotube shocks from the factory.
 

LCW

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Any Gladiator rear shock is probably too long and probably different eyelet spacers to mount onto a Wrangler properly.
 

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Coming from a JK Sport with a frankenlift, I'm pretty sure I'll think my JLUR-XR (currently on order) drives like a freaking dream on the back roads when it finally arrives lol.
 

AccuTunedJL

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Regular Rubicon does NOT have Fox shocks, neither do any of the XR packages incl 392.

Only regular 392 has Fox 2.0 monotube shocks from the factory.
Sorry I omitted the "392" regular Rubicon in my statement.
 
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kilian73

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Are you getting tramlining? When the tires follow the cracks in the road...
I don't think that's the issue at all. It just bounces hard to one side or the other sometimes on back roads. It's smooth as can be on regular roads. I think I am going to slap some shocks on to see if that helps.
 
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Steph1

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So from a non XR Gladiator Rubicon. Do they even make XR Gladiators (or the equivalent)? They'll work on an XR? Sorry for the questions, never too old to learn.
Zero need to appologize, you don’t know you don’t know…. Yeah XR or not, they would fit and provide a much smoother ride. The only culprit is you need to change the upper rear shock mounts with JL ones.
 

Capt. Don

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35 PSI. I had thought higher tire pressure would make it bounce more.
I have found in my JLUHTXR that 30 psi is the sweet spot for on-road for the 35s. AEV recommends 30 psi for 35s with their lift kits for street use and I tend to trust those folks. I run 18-20 psi off-road. 37 psi per factory recommendations really does not work on-road and those over-inflated stiff sidewalls at 37 psi are terrible off-road for the 35s, unless you like on-road or off to feel your bump-stops all the time, like to be hard on your tires and suspension, like a flighty feel in your steering and a rough ride. And I have not been able to measure a difference in fuel mileage over 200 miles on the same loop between 30 psi and 37 psi in the BFG All-Terrain 315/70R17 34.5" tires at speeds principally at 60 mph. I keep thinking that there must be some difference but I can't measure it. Traffic and weather have a bigger impact. Try your JLURXR at 30 psi cold for a week and see what you think. At your 35 psi my input is that you are still too high and there is a better suspended and steering Jeep JLURXR for you to discover and enjoy at 30 psi. Let those 35s do their job.
 

TamTam

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Hey, so I have been driving my XR for 3k miles or so now. My wife and I absolutely love it (we have both always wanted a wrangler). The only thing I would like to improve is its driveability and handling on back roads. It can be pretty wild on back roads, seeming to jump/bounce back and forth a good bit. I have already replaced the LCA's with the longer ones from the 2" lift kit, which helped with tracking. Any advice would be greatly appreciated.

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I have a 2023 Rubicon XR that I switched out the tires to 37” Nitto Ridge Grapplers and the wheels to ICON Rebound Pro Wheels. I run my tires around 29-32 max psi and I don’t have any issues with it bouncing around including on backroads. I’d suggest lowering your psi and trying it for awhile before unloading a lot of money on other expensive options. Just a suggestion for you.
Also keep in mind like someone else suggested; it’s a Jeep and it will ride like a Jeep, though you can find a happy medium 😉.


Best of luck to you!

~TamTam

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