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2005 Jeep TJ Rubicon
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Discussion Starter #1
I have 2.5" spring spacers on stock coils on my 05 TJ Rubicon.
I want to do a 3" spring lift to replace the spacer lift.
I use the Jeep for back country travel and camping.
I have a roof rack and basket on top and normally carry everything needed for four guys to camp and it's a heavy load.
I'm looking for heavy duty 3" coil springs for the rear and the front.
Does anyone use heavy duty springs or have information?
 

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I have Superlift springs on my formerly heavy LJ and had a good ride height. We've had quite a few discussions on springs, maybe search around ROF for some ideas. I've heard Old Man Emu mentioned quite a few times.
 

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2005 Jeep TJ Rubicon
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Discussion Starter #3
I have Superlift springs on my formerly heavy LJ and had a good ride height. We've had quite a few discussions on springs, maybe search around ROF for some ideas. I've heard Old Man Emu mentioned quite a few times.
Thank You John
I've done some searching but haven't found anything that specifically says heavy duty.
maybe good quality springs with air bags is the way to go.
 

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2004 TJ Rubicon
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I'd reach out to Dirk at DPG Offroad. He's been an OME specialist and longtime ROF supporter. Just let me know what you're looking for and they'll point you in the right direction.
 
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Thank You John
I've done some searching but haven't found anything that specifically says heavy duty.
maybe good quality springs with air bags is the way to go.
I'm not sure if "heavy duty" has much relevance for spring shopping, check out Quadratec and 4 Wheel Parts for an idea of how springs are described for a particular application.
 

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I have AEV dual rate springs on my Jeep. I'm not sure if they would be "Heavy Duty" enough for your application, but I really like the ride quality. A smooth and fairly soft ride during daily use but firm enough when off roading.
 

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Ome is nice since they have different spring rates. I have them on my LJR. About to replace them after many years. Might go 1" higher in the rear because of offroad stuff, roof top tent and 140 lbs of dogs...
 
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.. dogs .. That's like hauling around another person.
 

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I've got the Metalcloak 3.5 inch short arm kit and 1.25 inch JKS bodylift with 33's and 35 inch BFGs and I'm very happy with it both on and offroad. I usually haul a lotta camping gear and "JustinCase" tools and spares.
 

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Check out JKS JSpec coils and suspension. I just installed their 3" coils on my LJ and I am really liking them. They are a dual rate coil that was designed specifically to carry a load. Very similar to how AEV/Nth degree coils were. The front coils are rated at 150lbs/220lbs and the rear coils are 190/240. They are designed so you ride in the softer section of coil and have the stiff section of coil in reserve for when you have a load. So when you are unloaded your coil springs will be opperating at 150lbs in front and 190lbs in the rear. But when you load it down you will progressively work into the higher rate. Once all the top coils go solid into full coil bind, you will be at the higher rates of 220lbs in front and 240lbs in the rear.

This is very different than how other dual rate springs like Metalcloak operate. Springs like Metalcloak have a very soft upper coil that is always in full bind. The intent of Metalcloak is to give you a longer spring for more droop. JKS is designed to ride in the soft rate and carry more load in the heavy rate.
 

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Check out JKS JSpec coils and suspension. I just installed their 3" coils on my LJ and I am really liking them. They are a dual rate coil that was designed specifically to carry a load. Very similar to how AEV/Nth degree coils were. The front coils are rated at 150lbs/220lbs and the rear coils are 190/240. They are designed so you ride in the softer section of coil and have the stiff section of coil in reserve for when you have a load. So when you are unloaded your coil springs will be opperating at 150lbs in front and 190lbs in the rear. But when you load it down you will progressively work into the higher rate. Once all the top coils go solid into full coil bind, you will be at the higher rates of 220lbs in front and 240lbs in the rear.

This is very different than how other dual rate springs like Metalcloak operate. Springs like Metalcloak have a very soft upper coil that is always in full bind. The intent of Metalcloak is to give you a longer spring for more droop. JKS is designed to ride in the soft rate and carry more load in the heavy rate.
I have 2.5" spring spacers on stock coils on my 05 TJ Rubicon.
I want to do a 3" spring lift to replace the spacer lift.
I use the Jeep for back country travel and camping.
I have a roof rack and basket on top and normally carry everything needed for four guys to camp and it's a heavy load.
I'm looking for heavy duty 3" coil springs for the rear and the front.
Does anyone use heavy duty springs or have information?
 

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I have a set of AEV 3" lift springs in like new condition for sale. I have another set mounted on my 06 LJR and like them a lot. Let me know if you're interested. You can text or call me at 509-378-0461 for more detail.
 

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Check out JKS JSpec coils and suspension. I just installed their 3" coils on my LJ and I am really liking them. They are a dual rate coil that was designed specifically to carry a load. Very similar to how AEV/Nth degree coils were. The front coils are rated at 150lbs/220lbs and the rear coils are 190/240. They are designed so you ride in the softer section of coil and have the stiff section of coil in reserve for when you have a load. So when you are unloaded your coil springs will be opperating at 150lbs in front and 190lbs in the rear. But when you load it down you will progressively work into the higher rate. Once all the top coils go solid into full coil bind, you will be at the higher rates of 220lbs in front and 240lbs in the rear.

This is very different than how other dual rate springs like Metalcloak operate. Springs like Metalcloak have a very soft upper coil that is always in full bind. The intent of Metalcloak is to give you a longer spring for more droop. JKS is designed to ride in the soft rate and carry more load in the heavy rate.
i’ve have been using the 3” JKS coils in my 04 Rubi for Some time now. And yeah definitely love them. On or off road. I recommend them. Good luck
 
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