heehawhardy
Adventurering
Tomorrow I'll be installing Bilstein 4600's on my Rubicon springs. Looking forward to initial drive
Jeep JK spring options... I need some input.
- Thread starter lax71vcu
- Start date
NFRs2000NYC
Adventurer
You can go with my setup, a Teraflex performance leveling kit. 2" front 1" rear, slightly stiffer to counteract the added weight, and no real loss of ride comfort. I have been running mine for over 1.5 years and have nothing negative to say about em.
UnlimiDozer
Observer
Just read through the thread and am also interested in the conclusions you guys arrive at. One thing to consider in all the discussion of height, excessive height, and advertised vs. actual height, is that all springs will settle in over a bit of time and use. So if the guy who gets 1.5" more than advertised measured as soon as he finished installing his lift, or when he got it home from the shop which did the work for him, then his numbers may be accurate, but misleading. Measure in 3 months' time or 6 months' time and you'll see a lower height than when brand new because of settling. Just my .02
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I agree 100% Dozer....
I took my measurements after 2 or 3 weeks of settling for this fact. It is possible I didn't weight long enough but am willing to take some more pics here in 2 or 3 months time if people would be interested. In my scenario I bought the 1" springs knowing they were designed for heavier rigs and the springs would likely net me more than the 1". I guessed between 1.5 and 2 inches. It looks like it hit at the top end of that guess. I will def take some shots when fully loaded for a camping weekend as that was another aspect I was concerned about when installing these springs.
I took my measurements after 2 or 3 weeks of settling for this fact. It is possible I didn't weight long enough but am willing to take some more pics here in 2 or 3 months time if people would be interested. In my scenario I bought the 1" springs knowing they were designed for heavier rigs and the springs would likely net me more than the 1". I guessed between 1.5 and 2 inches. It looks like it hit at the top end of that guess. I will def take some shots when fully loaded for a camping weekend as that was another aspect I was concerned about when installing these springs.
pilosopo
Adventurer
Just another update.
I replaced my front lower control arms with JKS fixed length lowers. Though everything seemed alright initially, when I made the change to 295/70R17 Falken Wildpeaks, the steering became noticeably twitchier. I believe the stiffer sidewalls on the new tires showed how much my lost caster actually affected steering. It does seem though, that me Jeep started out a bit taller than most in the front to begin with.
Also, I added a 10mm OME rear spring spacer as with the heavier tire on the back me Jeep almost looked lower in the rear. I prefer the slightly raked stance so that when loaded my jeep isn't low in the rear. With time though, I've become less satisfied with my rear springs. I don't feel they have enough spring rate as when compared to the front the rear feels very soft
I replaced my front lower control arms with JKS fixed length lowers. Though everything seemed alright initially, when I made the change to 295/70R17 Falken Wildpeaks, the steering became noticeably twitchier. I believe the stiffer sidewalls on the new tires showed how much my lost caster actually affected steering. It does seem though, that me Jeep started out a bit taller than most in the front to begin with.
Also, I added a 10mm OME rear spring spacer as with the heavier tire on the back me Jeep almost looked lower in the rear. I prefer the slightly raked stance so that when loaded my jeep isn't low in the rear. With time though, I've become less satisfied with my rear springs. I don't feel they have enough spring rate as when compared to the front the rear feels very soft
So I got my 2014 JKUR and am getting ready to start the build. Was thinking about the 1" Synergy springs but I just found out that both Rock Krawler and Metalcloak are very close to releasing 1.5" 4-door springs. The RK's are suppose to be triple rate progressive and MC will be their dual rate springs. Looking forward to hearing more on both before pulling the trigger.
Saltriverfolk
New member
New Sahara JKU Take-off Coil Springs For Sale, Birmingham
I've got 1 set each of new 4-dr JKU Sahara take-offs of 16/58s and 17/59s that I am willing to sell for $15 per spring plus shipping (about $35). Each increase in spring number is supposed to be about 1/2" of lift over stock on a 2-dr JK. I bought them for my 2011 JK but sold it before swapping them out. Send me a PM if you want them.
I've got 1 set each of new 4-dr JKU Sahara take-offs of 16/58s and 17/59s that I am willing to sell for $15 per spring plus shipping (about $35). Each increase in spring number is supposed to be about 1/2" of lift over stock on a 2-dr JK. I bought them for my 2011 JK but sold it before swapping them out. Send me a PM if you want them.
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Thanks a ton all for the information! I have a 2013 JKU, lightly loaded (only real weight is ~90lbs of wheel and tire on the back). I really don't want much lift and have been looking at the 1" Synergy's all the way around.
Lax71VCU: Do you know what your spring rates were on your stock springs that got replaced. If not, the last 2 numbers (before the final 2 letters) on the tags tell you. Can you post what your stock springs were? For example, if you started with 15/57 and got 2.5" front and 2" rear lift with your synergy, then someone else going from 18/59 would get about .75" less (similarly weighted). Thanks!
Not sure but will look into it.
I can tell you I have a 2010 JKUR with Hard top. My assumption would be these would be the stiffest springs sold on a jeep..... We all knows what happens when you assume!
I still have the springs and will look to get that info for you...
As of now I have only seen about 2" in the front and 1.5" in the rear. I have considered 10mm rear spring spacers from OME to get back some factory rake but I will say that it seems to hold the weight VERY well when I add gear and approx 70 lbs of water to rear bumper.
Also to give some more perspective on clearance now with the stock Rubi tires (255/75/17) I can fit a 12oz soda can on top of tire and still have approx 1.5 inches to the bottom of the fender. Nice clearance!
I can tell you I have a 2010 JKUR with Hard top. My assumption would be these would be the stiffest springs sold on a jeep..... We all knows what happens when you assume!
I still have the springs and will look to get that info for you...
As of now I have only seen about 2" in the front and 1.5" in the rear. I have considered 10mm rear spring spacers from OME to get back some factory rake but I will say that it seems to hold the weight VERY well when I add gear and approx 70 lbs of water to rear bumper.
Also to give some more perspective on clearance now with the stock Rubi tires (255/75/17) I can fit a 12oz soda can on top of tire and still have approx 1.5 inches to the bottom of the fender. Nice clearance!
Thanks a TON. If you could post the spring rates that would be awesome. Much appreciated.
Regarding "assuming" spring rates--it is such a crapshoot. I had a 2007 JKUR with hardtop and that had 17/58 springs . I now have a 2013 Unlimited soft top and it came with 16/59 springs. Neither had a tow package. The "which springs should be on my jeep" is a voodoo magic question.
2" front and 1.5" rear is basically perfect for what I want. The only weight I have in unloaded configuration is 90lbs of wheel and tire (rear only), and 60 lbs of rock rails (equal front and rear).
I replicated your current scientific soda-can test and cannot fit a soadcan as is under the fender (yet). I have 285/75/17 tires. I'd love to have sodacan + .5" all the way around. Sounds like if I get the Synergy 1" and have similar results to yours, I will be in great shape!
Is your "I got 1.5 inch rear/2 inch front" loaded, unloaded, or it really doesn't matter? Any issue with the ride when in unloaded configuration?
Thanks a bunch for the insight.