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Old 08-22-2010, 08:45 PM   #1 (permalink)
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Best Coil Springs for ROCKS?

I have a 98 TJ with JJ Control arms all around, Full Traction 3 link in the rear, with RE 3.5 springs & Bilstien shocks. It's a Short arm suspension.

I'm looking to replace my springs with something better suited for the rocks. I assume softer is better, so which spring is the best for for ROCKIN'?
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Old 08-23-2010, 12:55 PM   #2 (permalink)
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A little more info or the scope of what your looking for in regards to springs might help conjure more responses.

Whats wrong with the RE springs you currently have?

Have you weighed your Jeep to get a ball park figure of how much it weighs?

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Old 08-23-2010, 01:32 PM   #3 (permalink)
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Well I didn't know how rough my jeep rode until I rode in my dad's new (used) jeep on the street. He has a clayton long arm kit and 5.5" Rock Krawler springs with brand new Skyjacker Nitro 8000's in the front and brand new 5100 Bilsteins in the rear.. Mine rides alot rougher (feel every bump in the road) on the street than his. His takes a speed bump on our street smoothly while mine bucks me out of my seat at the same speed.

Not sure on the weight of mine or his. I have a bolt on cage, tube front fenders, a crawler front bumper with no winch yet, a Rock Hard sport cage and a 3/16" Tummy tuck and a Warn rear bumper/tire carrier. Thats all the real extra weight I have over stock.

We haven't wheeled his yet (as he just picked it up this weekend) and I haven't wheeled my yet with the shock & JJ control arm upgrades. But judging by street manners, his is on a cloud and mine is on a gravel road. Just looking for opinions. I'm kinda a newb since I haven't wheeled all that much. Thanks.
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Old 08-23-2010, 03:00 PM   #4 (permalink)
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Short arms ride like shit compared to long arms. Hell, I bet your 3.5" springs are closer to 5", being RE. Short arm geometry is good for about 4.
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Old 08-23-2010, 03:25 PM   #5 (permalink)
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Short arms ride like shit compared to long arms. Hell, I bet your 3.5" springs are closer to 5", being RE. Short arm geometry is good for about 4.
X2 its your short arms.
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Old 08-23-2010, 03:29 PM   #6 (permalink)
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So I'm just SOL until I can afford a Long Arm kit 10 years from now? Nothing else will help?
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Old 08-23-2010, 03:38 PM   #7 (permalink)
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So I'm just SOL until I can afford a Long Arm kit 10 years from now? Nothing else will help?
Get shorter springs..
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Old 08-23-2010, 04:31 PM   #8 (permalink)
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So I'm just SOL until I can afford a Long Arm kit 10 years from now? Nothing else will help?
Check out Old Man Emu springs and shocks. I run 35s with a short arm and my jeep rides nice, it rides better with my current setup than when I got it with 32s and Doetsch shocks.
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Old 08-23-2010, 05:51 PM   #9 (permalink)
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With short arms, the lower the better. I run double JJ short lowers and front uppers with the triangulated RK setup in the rear. It has BDS 3" front springs and RC 2.5" progressive springs in the rear. I moved the coil buckets back so that the springs sit upright, which made a noticeable improvement in ride quality, as did outboarding the rear shock mounts. Run good shocks, low height, and good control arms (which you already have) and the ride should be very good.
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Old 08-23-2010, 08:29 PM   #10 (permalink)
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Short arm suspension that rides well?

Keep it under 4", good shocks (outboarded if possible), relocate your springs (vertical) and check your air pressure.

You'll be surprised in the quality ride you can get with short arms.

Last edited by Jeep02Apex; 08-23-2010 at 08:29 PM.
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Old 08-24-2010, 08:01 AM   #11 (permalink)
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short long arm, around 3" or stock if you're willing to cut with a sawzall. The more horizontal you can get your links, the better the ride you will have. Short arms have their place, above a 4.5" lift its best to go long arm because at that height your short arms begin to have an extreme angle.
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Old 08-24-2010, 10:26 AM   #12 (permalink)
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Let me clarify my intentions. I could care less about how it rides on the street. Its a jeep. I was using the street manners as a comparison because that's all I can do for now. I'm looking for the best performance out of my short arm. I have new Johnny joints all around and a full traction 3 link in the rear. I have new SA Bilstien 4" 5100's. Old RE 3.5 springs. Will a different spring improve the suspension at all? Thanks
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Old 08-24-2010, 12:21 PM   #13 (permalink)
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Quote:
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Let me clarify my intentions. I could care less about how it rides on the street. Its a jeep. I was using the street manners as a comparison because that's all I can do for now. I'm looking for the best performance out of my short arm. I have new Johnny joints all around and a full traction 3 link in the rear. I have new SA Bilstien 4" 5100's. Old RE 3.5 springs. Will a different spring improve the suspension at all? Thanks
Definitely. If I were you, I'd use stock TJ springs and gain the clearence in the fenders.
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Old 08-24-2010, 12:48 PM   #14 (permalink)
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As others have said, for a short-arm suspension go with short and soft springs. There is only so much movement you can get out of the shorter arms, so try to take advantage of it. With 5.5" of lift, your arms are running pretty high angles just sitting there.

Save your pennies and get longer arms if you want noticeable improvement.
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