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Old 02-16-2017, 07:40 AM
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Sport upgrade to Rubicon Shocks/Springs

I'm looking for a little clarification on my plan for this switch.

What I Have:
I have a '16 Sport 2-Door with a the Teraflex Leveling kit(Spacers and Links). I currently have the stock shocks and springs. The springs installed are 14/55.

What I have read is that the Rubicon shocks are a definite upgrade to my current shocks. So my plan is to switch those out since I don't need to worry about shock length with the leveling kit.
HOWEVER
I have also read that with each increase in number on the springs there is approximately a 1/4" correlation in lift. So.......If I go with the springs too, can I still use the stock Rubicon shocks? I currently have a line on 19/60 springs. Would that correlate into a 1 1/4" lift? Does that add to the leveling kit and essentially give me a 3 1/4" front and 2 1/4" rear lift? Can I still use stock shocks or do I need to move to longer ones? How about the sway bar links from the Teraflex kit?

Am I putting to much though into this?

I've done some reading but I just can't seem to wrap my head around this. Any direction would greatly be appreciated. Thanks in advance

John

Edit: I should add that I do in fact plan on adding front and rear bumpers and possibly a winch in the near future. My intentions are light to moderate off-road, but this is a DD as well.

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Old 02-16-2017, 07:58 AM   #2
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If you're swapping out springs and shocks go aftermarket.

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Old 02-16-2017, 08:09 AM   #3
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The shocks will be an improvement over the stock sport shocks, the springs will be stiffer, i believe the stiffer springs came on certain model Jeeps from the factory to compensate for the added weight on Jeeps equipped with the tow package,factory hardtop etc.

I was running a teraflex leveling kit on my JKU sport for a few years, i was given a set of rubi takeoff shocks and 18/59 springs and installed them shortly after the leveling kit...they initially improved the ride, but the front eventually sagged noticeably after adding a winch/bumper. so i went with a 2.5" AEV lift.

there is some info here that may help:

https://www.wranglerforum.com/f274/an...jk-171293.html
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Old 02-16-2017, 08:11 AM
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Originally Posted by RPITUP View Post
If you're swapping out springs and shocks go aftermarket.
I would if I could, but I'm on a pretty tight budget. If I skip the springs though I will most likely go with Rancho RS5000X shocks instead of the rubicons
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Old 02-16-2017, 08:17 AM
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Quote:
Originally Posted by ArcsJK View Post
The shocks will be an improvement over the stock sport shocks, the springs will be stiffer, i believe the stiffer springs came on certain model Jeeps from the factory to compensate for the added weight on Jeeps equipped with the tow package,factory hardtop etc.

I was running a teraflex leveling kit on my JKU sport for a few years, i was given a set of rubi takeoff shocks and 18/59 springs and installed them shortly after the leveling kit...they initially improved the ride, but the front eventually sagged noticeably after adding a winch/bumper. so i went with a 2.5" AEV lift.

there is some info here that may help:

https://www.wranglerforum.com/f274/an...jk-171293.html
Thank you. I had not run across that thread and it led me to a couple of others that have promise as well. I would imagine as time goes by I too will move on to a proper lift.

This quote in particular cleared up some of my confusion
Quote:
Originally Posted by MTH View Post
Quote:
Originally Posted by carguyco View Post
Also...if they are longer or end up being longer because of less compression..why then wouldn't you need shock extensions or longer shocks?
No, simply because you're still at a "stock" height. The stock shocks are sufficiently long to handle it.

When you get a "real" coil lift (TeraFlex, Rock Krawler, etc.), it's a bit of a guess as to how much lift you're actually going to get because the new lift kit doesn't know what coil rates you had before. In general, it's a safe bet that a 2.5" coil lift is going to give you about 2.5" of lift OVER the MAX stock height--i.e., where your jeep would've been with 19/60s or a similarly high number. It's not an exact science, but that's a good general rule.

This is why it's common to see folks install coil lifts and say that they actually got more lift than advertised. They may have been at 14/55s to begin with, so their 2.5" coil lift may have netted them 3" or 3.5" of actual lift. I don't think the aftermarket companies want to risk giving you LESS height than advertised, so they build the coils with the assumption that your starting from a pretty tall stock stance.

For this reason, getting the 19/60s and getting a 2.5" coil lift can be quite different in terms of final height.

Finally, my last caveat whenever I write about 19/60s: Don't get these for a 4 door. JKUs routinely have stiffer coils to begin with, and in any event are hundreds of pounds heavier than 2 door JKs. Swapping the 17/58s your JKU likely came with to 19/60s is unlikely to provide much of a visible benefit. It's a different story for 2 doors though that in all likelihood came with 14/55s or something similarly low.
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Old 02-16-2017, 10:21 AM   #6
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Quote:
Originally Posted by jgraz View Post
I'm looking for a little clarification on my plan for this switch.

What I Have:
I have a '16 Sport 2-Door with a the Teraflex Leveling kit(Spacers and Links). I currently have the stock shocks and springs. The springs installed are 14/55.

What I have read is that the Rubicon shocks are a definite upgrade to my current shocks. So my plan is to switch those out since I don't need to worry about shock length with the leveling kit.
HOWEVER
I have also read that with each increase in number on the springs there is approximately a 1/4" correlation in lift. So.......If I go with the springs too, can I still use the stock Rubicon shocks? I currently have a line on 19/60 springs. Would that correlate into a 1 1/4" lift? Does that add to the leveling kit and essentially give me a 3 1/4" front and 2 1/4" rear lift? Can I still use stock shocks or do I need to move to longer ones? How about the sway bar links from the Teraflex kit?

Am I putting to much though into this?

I've done some reading but I just can't seem to wrap my head around this. Any direction would greatly be appreciated. Thanks in advance

John

Edit: I should add that I do in fact plan on adding front and rear bumpers and possibly a winch in the near future. My intentions are light to moderate off-road, but this is a DD as well.
Yes, you get roughly 1/4" per spring number and it's usually just a little more than that. I've done a number of these including my daughters current JK. They are longer and have a slightly higher spring rate. If you combine the leveling kit and the lifted springs, you would have a mess on a 2dr. It is no different than putting on a 3" lift and needing all the parts that go with it. Longer shocks, bump stops, caster correction, sway bar links, track bar brackets, etc. If you are running 35's than buy a complete 2.5" lift kit.

If you are on 33's, the spring swap is an excellent 1.5" to 2" lift. The Rubicon shocks are better than sports but not as good as Rancho 5000X.

Quote:
Originally Posted by RPITUP View Post
If you're swapping out springs and shocks go aftermarket.
The 19/60 spring swap is an awesome little lift for 2dr's that aren't going to run 35's. And all in for $100...
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bumper - Yukon Gears - G2 Diff Covers - Pro Comp 8186 - Milestar Patagonia 35's - Teraflex BRK
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Old 02-16-2017, 10:54 AM
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Originally Posted by Pressurized View Post
Yes, you get roughly 1/4" per spring number and it's usually just a little more than that. I've done a number of these including my daughters current JK. They are longer and have a slightly higher spring rate. If you combine the leveling kit and the lifted springs, you would have a mess on a 2dr. It is no different than putting on a 3" lift and needing all the parts that go with it. Longer shocks, bump stops, caster correction, sway bar links, track bar brackets, etc. If you are running 35's than buy a complete 2.5" lift kit.

If you are on 33's, the spring swap is an excellent 1.5" to 2" lift. The Rubicon shocks are better than sports but not as good as Rancho 5000X.



The 19/60 spring swap is an awesome little lift for 2dr's that aren't going to run 35's. And all in for $100...
Thank you
That is everything needed to know. I already have the leveling kit installed and suspected that if combined with the bigger coils the lift would compound and lead to other things. Therefore I will stay away from the coils. The shock however are still on tap. I recently saw where Rancho may be doing something in March so I guess it will be 5000x's for me. especially since they will not be much more then the take off's anyway.
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Old 02-16-2017, 02:06 PM   #8
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I am interested to know this as well. I have a 2015 Willy's Wheeler and from what I understand this Jeep already comes with the Rubicon's suspension setup...I am interested in going with a leveling kit so I can run 33in K02 tires with 1.5in spacers so I can keep the stock wheels

Would this be a good option for me?
Also I should note, I have a winch and aftermarket bumper on already (previous owner)
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Old 02-16-2017, 03:32 PM   #9
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Originally Posted by wrnglrGT View Post
I am interested to know this as well. I have a 2015 Willy's Wheeler and from what I understand this Jeep already comes with the Rubicon's suspension setup...I am interested in going with a leveling kit so I can run 33in K02 tires with 1.5in spacers so I can keep the stock wheels

Would this be a good option for me?
Also I should note, I have a winch and aftermarket bumper on already (previous owner)
Is it a 2dr? If so, the 4dr spring swap is a great option. I like it better and it's cheaper than a leveling kit. And yes it's great with 33's.
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Rugged Ridge XHD
bumper - Yukon Gears - G2 Diff Covers - Pro Comp 8186 - Milestar Patagonia 35's - Teraflex BRK
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Old 02-16-2017, 09:39 PM   #10
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Is it a 2dr? If so, the 4dr spring swap is a great option. I like it better and it's cheaper than a leveling kit. And yes it's great with 33's.
yes it a 2 dr

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