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Old 08-30-2017, 10:25 PM
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Experiences with Synergy springs?

After the Warn and ARBs, I'm down about an inch overall on my '12 JKUR. I'm looking to fit 33s later this year and give myself a little bit more rocker clearance, so the idea of a 1" lift is interesting - I was just wondering, I've heard that Synergy rates its lift heights based on a heavier Jeep (winch, metal bumpers, etc) - have you found this to be accurate?

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Old 08-31-2017, 07:11 PM   #2
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Pretty much all aftermarket springs account for the extra weight which is why light jeeps get so much extra lift versus advertised. I have no experience with synergy but I had rk 1.5" coils on my jku and while I only do easy to moderate trails I found myself on my rock sliders quite a few times when cresting hills that immediately descended. Personally I would go 2 or 2.5" to help with the breakover.
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Old 08-31-2017, 07:42 PM   #3
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I run the Synergy springs , I have the 3in progressive and love them .one thing to note on Synergy , they bild the rake into the springs so my front is a tad bit lower .you can buy taller spings for the front to level it out .

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Old 09-01-2017, 12:29 AM   #4
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I have synergy 1" both front and back. I have an aev front bumper and m8000 winch and I have exactly 2" over stock on my JKUR. I have an aev rear bumper with a 34" toyo OC on the carrier and have 2" over stock on the rear. I like the rake, leveled jeeps look squatty to me.
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Old 09-01-2017, 08:55 PM   #5
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Originally Posted by KG4NEL View Post
After the Warn and ARBs, I'm down about an inch overall on my '12 JKUR. I'm looking to fit 33s later this year and give myself a little bit more rocker clearance, so the idea of a 1" lift is interesting - I was just wondering, I've heard that Synergy rates its lift heights based on a heavier Jeep (winch, metal bumpers, etc) - have you found this to be accurate?
I have the Synergy 1" springs and love them. Gave me 2.25"front and 2" back. It got rid of the factory rake!

They drive like stock with a little less body roll around the corners.
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Old 01-14-2020, 11:00 PM   #6
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Originally Posted by tapcola View Post
I run the Synergy springs , I have the 3in progressive and love them .one thing to note on Synergy , they bild the rake into the springs so my front is a tad bit lower .you can buy taller spings for the front to level it out .

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Necr'ing an old thread....hope you don't mind.

Did you end up running a 4" spring for the front or did you use a spacer? Still running the Synergy springs? Is your Jeep heavy or light? Which shocks?
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Old 01-14-2020, 11:38 PM   #7
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Necr'ing an old thread....hope you don't mind.



Did you end up running a 4" spring for the front or did you use a spacer? Still running the Synergy springs? Is your Jeep heavy or light? Which shocks?
I run the 3 all around, with the fox 2.5 DCS and I'm light.still on Synergys.

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Old 01-16-2020, 04:50 PM   #8
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Originally Posted by tapcola View Post
I run the Synergy springs , I have the 3in progressive and love them .one thing to note on Synergy , they bild the rake into the springs so my front is a tad bit lower .you can buy taller spings for the front to level it out .

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i'm on the same springs. they've been awesome. i ran Metalcloaks on my old Jeep, and I've much preferred the ride on the Synergy springs.
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Old 01-16-2020, 11:41 PM   #9
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Anyone swap from RK springs to Synergy springs? I'm in the process of swapping out a lot of RK stuff to Synergy and wondering if I should think about springs. I'm pretty happy with the RK springs but unloaded they are very soft.
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Old 01-17-2020, 08:08 AM   #10
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I run SSM-8063-20 (2in on the front) and SSM-8064-10 (1in on the rear) of my JKU. Also have ACE mid width front bumper and pro series rear bumpers. levels out nicely,
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Old 01-17-2020, 03:20 PM   #11
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I run SSM-8063-20 (2in on the front) and SSM-8064-10 (1in on the rear) of my JKU. Also have ACE mid width front bumper and pro series rear bumpers. levels out nicely,
How much lift did you yield up front using these springs and is it a 2dr or 4dr?
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Old 01-17-2020, 09:01 PM   #12
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Anyone swap from RK springs to Synergy springs? I'm in the process of swapping out a lot of RK stuff to Synergy and wondering if I should think about springs. I'm pretty happy with the RK springs but unloaded they are very soft.
RK springs are reasonably soft, but Synergy is even softer. The 3 softest springs on the market are Synergy, OME and Eibach. Then the Mopars are slightly above those. The RK's and light JKS above those. At the other end, the Clayton's and Rubicon Express are the firmest that I have found.

I do like the Synergy springs, 3" front and 2" rear...
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Old 01-18-2020, 12:32 AM   #13
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Anyone swap from RK springs to Synergy springs? I'm in the process of swapping out a lot of RK stuff to Synergy and wondering if I should think about springs. I'm pretty happy with the RK springs but unloaded they are very soft.
RK springs are reasonably soft, but Synergy is even softer. The 3 softest springs on the market are Synergy, OME and Eibach. Then the Mopars are slightly above those. The RK's and light JKS above those. At the other end, the Clayton's and Rubicon Express are the firmest that I have found.

I do like the Synergy springs, 3" front and 2" rear...
Evidence?

I hear EVOs are soft.

I’ve ran Synergy 4.5s for years. They seem nice. Not too soft. Not too hard. Like Goldilocks.
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Old 01-18-2020, 03:46 AM   #14
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I run SSM-8063-20 (2in on the front) and SSM-8064-10 (1in on the rear) of my JKU. Also have ACE mid width front bumper and pro series rear bumpers. levels out nicely,
How much lift did you yield up front using these springs and is it a 2dr or 4dr?
I ended up with 2.5in up front and 1.5 in the rear on a 4dr
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Old 01-18-2020, 10:54 AM   #15
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Evidence?

I hear EVOs are soft.

Iíve ran Synergy 4.5s for years. They seem nice. Not too soft. Not too hard. Like Goldilocks.
I've got a spreadsheet that I've been working on for about 4 years with data from a variety of sources including MFG websites, MFG emails and even a race shop with a spring dyno. Is it 100% accurate? Tough to know, but I trust the sources. I also still have some blanks because some MFG's simply refuse to share that data. And some, like ICON was so out of whack I didn't use it... Their engineer gave me rates that were roughly 1/2 of what the stock spring rates are and that's simply not possible.

My "hobby shop" does a LOT of Jeep lifts... It's authorized Metalcloak and AEV among many others. I see and drive a ton of different tires and lift kits.

But, if you have info that disagrees, PM me and lets discuss maybe you can help my data.
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Old 01-18-2020, 04:43 PM   #16
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I've got a spreadsheet that I've been working on for about 4 years with data from a variety of sources including MFG websites, MFG emails and even a race shop with a spring dyno. Is it 100% accurate? Tough to know, but I trust the sources. I also still have some blanks because some MFG's simply refuse to share that data. And some, like ICON was so out of whack I didn't use it... Their engineer gave me rates that were roughly 1/2 of what the stock spring rates are and that's simply not possible.

My "hobby shop" does a LOT of Jeep lifts... It's authorized Metalcloak and AEV among many others. I see and drive a ton of different tires and lift kits.

But, if you have info that disagrees, PM me and lets discuss maybe you can help my data.
I don’t have any reason to disagree with you. I was just wondering what evidence you had to support your assertions. Sounds like you have some.

I only have substantial experience with Synergy, because that’s what I have. I’ve not heard anyone describe them as soft, but I wouldn’t dispute that. Mine ride pretty nicely and, surprisingly, haven’t sagged in the 8 or so years I’ve had them even though my rig is heavy and gets a work out on the rocks.
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Old 01-18-2020, 05:46 PM   #17
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I donít have any reason to disagree with you. I was just wondering what evidence you had to support your assertions. Sounds like you have some.

I only have substantial experience with Synergy, because thatís what I have. Iíve not heard anyone describe them as soft, but I wouldnít dispute that. Mine ride pretty nicely and, surprisingly, havenít sagged in the 8 or so years Iíve had them even though my rig is heavy and gets a work out on the rocks.
Good to know, but I'll add that you are on the previous generation Synergy springs and they were a little firmer than their current generation product. If memory serves me, yours would be their linear springs and all of the current springs are dual rate. Still really good springs in my opinion.
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Old 01-19-2020, 02:10 PM   #18
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Old 01-19-2020, 03:17 PM   #19
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Experiences with Synergy springs?

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. And some, like ICON was so out of whack I didn't use it... Their engineer gave me rates that were roughly 1/2 of what the stock spring rates are and that's simply not possible.

Good to know it’s not just me that has evidence to show that Icon is a sloppy company. I won’t even go into the problems I’ve had with their products. I’ll just say it cost me thousands out of pocket for a problem they finally admitted was due to poor QA. I’d add poor design and arrogant ownership/management as well. Never will I ever consider any of their products again in my lifetime.



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