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is it true? springs off a 4 door jku on a 2 door jk make it ride higher?

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Old 07-01-2011, 12:18 AM
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Default is it true? springs off a 4 door jku on a 2 door jk make it ride higher?

I am getting a free set of JKU springs from Starcats 4 door mountain edition.

I hear they can make a 2 door jk ride higher?

is it true?

my 2 door rubicon could use a real budget lift, that would be great.
Old 07-01-2011, 04:34 AM
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In some cases, yes. This thread lays it out:

https://www.jk-forum.com/forums/show...rings-Question
Old 07-01-2011, 04:38 AM
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When I put the springs off a JKU Rubicon on my two door X it was about 1 3/4" - 2" lift. Just make sure that the springs in the correct location.
Old 07-01-2011, 05:35 AM
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Originally Posted by NEWWRANGLEROLDCJ7
I am getting a free set of JKU springs from Starcats 4 door mountain edition.

I hear they can make a 2 door jk ride higher?

is it true?

my 2 door rubicon could use a real budget lift, that would be great.
True if the spring numbers are different. I went from 14's (front) to 17's and 55 (rear) to 59's and gained ~ 2 inches.

What are your stock spring #'s and the #'s on from the Mountain addition?
Old 07-01-2011, 05:40 AM
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Got around 1.75-2 inches going from 14s on the front of my 2 door Sport to 18s from a JKU Rubicon. Surprisingly enough it rides better too.
Old 07-01-2011, 12:58 PM
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SO it sounds like because the springs are off a mountain, jku
and I have a Rubicon 2 door, I may get a bit of lift from it, prob not into the 2 inch area. but every little bit helps for now right, and if they are are higher rated, that will help with avoiding sagging when I do get the big and heavy warn power plant on the front end.

i will get his numbers and my numbers,
and post them maybe a guru can help let me know if its a bonus to change them,

I am assuming because Mountain additions are hard core, and its a four door, that my 2 door rubicon will benefit from these springs. Mainly because my jeep is lighter.
Old 07-01-2011, 01:09 PM
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sounds like a lot of work for a "maybe"
spacers are cheap and your guranteed...
Old 07-01-2011, 01:13 PM
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the sticker numbers on the four door springs are

blue sticker for the front, 5212
6317ac

the rear springs have a silver sticker and the are number
6800
4458aa


I have to go see what I have on my jeep,
Old 07-01-2011, 02:16 PM
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Originally Posted by KDBinAZ
True if the spring numbers are different. I went from 14's (front) to 17's and 55 (rear) to 59's and gained ~ 2 inches.

What are your stock spring #'s and the #'s on from the Mountain addition?
the spring numbers on the 2010 mountain edition 4 door are

front 5212 6317ac
back 68004458


the spring numbers on my 2011 2 door rubicon I can't see they are not there.


the vin number on my 2 door rubi has a B as the 4th number.

and it appears that the vin number on the 2010 mountain edition 4 door is the same fisrt four digits as mine.. the fourth digit is also a, "B".


so if that thread is true and the 4th digit tells you then it looks like they are the same. both B

Last edited by NEWWRANGLEROLDCJ7; 07-01-2011 at 02:24 PM.
Old 07-01-2011, 05:53 PM
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Originally Posted by NEWWRANGLEROLDCJ7

the spring numbers on the 2010 mountain edition 4 door are

front 5212 6317ac
back 68004458

the spring numbers on my 2011 2 door rubicon I can't see they are not there.

the vin number on my 2 door rubi has a B as the 4th number.

and it appears that the vin number on the 2010 mountain edition 4 door is the same fisrt four digits as mine.. the fourth digit is also a, "B".

so if that thread is true and the 4th digit tells you then it looks like they are the same. both B
Is your rubi an auto or manual? Hard or soft top?

Manual and soft tops will have a lighter spring as they lighter than a hard top and auto.
I did notice a 2" (front) and 1 3/4" (rear) gain when i swapped to 17/59's on my2 door soft top 6 speed (stock 14&55)


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