Lets Solve the Stock Springs Question
#441
JK Super Freak
I'll need to pull up my Saharas specs for the thread. This has been pretty enlightening for me.
Something I wanted to mention. I believe the longer/stiffer spring is used on the passenger front, not because of the gas tank, but because of the camber of North American roads.
I had learned that alignment specs for cars commonly call for different specs between the two front wheels, for the same purpose.
I had all kinds of trouble getting an old sport truck of mine to handle right. It was because it was lowered and I had it running heavy anti-sway bars. It rode so flat that it needed a uniform alignment up front. That truck (from the factory) also had different ride heights from left front to right front.
Something I wanted to mention. I believe the longer/stiffer spring is used on the passenger front, not because of the gas tank, but because of the camber of North American roads.
I had learned that alignment specs for cars commonly call for different specs between the two front wheels, for the same purpose.
I had all kinds of trouble getting an old sport truck of mine to handle right. It was because it was lowered and I had it running heavy anti-sway bars. It rode so flat that it needed a uniform alignment up front. That truck (from the factory) also had different ride heights from left front to right front.
#442
JK Enthusiast
Join Date: Aug 2011
Location: Salt Lake City, Utah
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Ok I'll Help out.
1 - Rubicon 2 door
2 - Hardtop only, with tow pkg, 5 speed auto
3 - Front springs..both are 52126314AC
4 - Rear springs..both are 68004257AA
5 - Front shocks 05168186AC Red/Rear shocks 05168188AC Red
6 - 4th Digit of VIN is B???? Door sticker says GVWR 5100 LBS
7 - 2012 MFG date 8-2011
1 - Rubicon 2 door
2 - Hardtop only, with tow pkg, 5 speed auto
3 - Front springs..both are 52126314AC
4 - Rear springs..both are 68004257AA
5 - Front shocks 05168186AC Red/Rear shocks 05168188AC Red
6 - 4th Digit of VIN is B???? Door sticker says GVWR 5100 LBS
7 - 2012 MFG date 8-2011
Last edited by Grimmjpr; 12-03-2011 at 08:12 PM.
#443
JK Newbie
Join Date: Aug 2011
Location: Yokohama, Japan
Posts: 94
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I finally received my 4dr JKU Rubicon Shocks and Springs. Shipped to me from the U.S.. I got these off e-bay for $200 and $65 shipping! I swapped from 14/56 springs to 18/59 on my 2dr. Shocks were also changed.
It took 6 hours. I took my time of course so I did not screw anything up. All around looks like I got 1.5" lift from this. I had a full tank of gas too. The fenders were all about 3' (36 inches) from the floor. Springs now 18/59. So now for the pictures....
BEFORE:
AFTER:
BEFORE:
AFTER:
Measurement from floor to front step behind tire.
After
Rear Step from floor (line on step is just above 17 inch mark)
Rear Step After
Fender measured from floor Before:
AFTER:
Rear Fender Before:
After:
Most fenders went from 36 inches to 37+ inches. The right side of the jeep was lower due to gas tank of course. The steering wheel did not change from what I can tell. Driving is fine, but I will get a wheel alignment next week to make sure. It was pulling slightly to the left anyway when letting go of the steering. Ride is now firm and the squat and yaw I had accelerating and braking is reduced to a great degree. So far I like it. I got my JKS Quick discos installed, but I was beat after that so I did not take pics, will get some later.
Sorry, for so many pics and their quality is not what I would like to have had.
It took 6 hours. I took my time of course so I did not screw anything up. All around looks like I got 1.5" lift from this. I had a full tank of gas too. The fenders were all about 3' (36 inches) from the floor. Springs now 18/59. So now for the pictures....
BEFORE:
AFTER:
BEFORE:
AFTER:
Measurement from floor to front step behind tire.
After
Rear Step from floor (line on step is just above 17 inch mark)
Rear Step After
Fender measured from floor Before:
AFTER:
Rear Fender Before:
After:
Most fenders went from 36 inches to 37+ inches. The right side of the jeep was lower due to gas tank of course. The steering wheel did not change from what I can tell. Driving is fine, but I will get a wheel alignment next week to make sure. It was pulling slightly to the left anyway when letting go of the steering. Ride is now firm and the squat and yaw I had accelerating and braking is reduced to a great degree. So far I like it. I got my JKS Quick discos installed, but I was beat after that so I did not take pics, will get some later.
Sorry, for so many pics and their quality is not what I would like to have had.
#444
JK Super Freak
I am hoping to help the database and get some help with what to do next...
1 - Sport 2 Door
2 - Born with Soft Top only
3 - Front springs..both are 52126314AC
4 - Rear springs..both are 68004255AA
5 - Front & Rear Shocks are the same 68028455AB, black
6 - 4th Digit of VIN is A, Door sticker says GVWR 4900 LBS
7 - 2011 MFG date 02/2011
No tow package... actually, no options at all. 6 speed.
While I currently have and use the dual tops and the hard top is on most of the time, the JK was built with a soft top. The dealer added the Freedom top at my request.
I understand the limitations of the stock Sport shocks and would like to upgrade them. Staying with OE components would be preferable just to keep the dealer happy. I already have a TF Leveling kit and would like to gain a little lift, firm up the ride and reduce dive & squat. Sounds like the Rubi JKU springs and shocks are what I am looking for.
Try as I might, with so many pages in this post I am having a tough time figuring out what my next move is so any help you can offer is appreciated... If I am understanding this, I have 14/55's which would tell me the Rubi JKU springs at 18 or 19/60 would be a step in the right direction towards my goals. Though with the leveling kit in, I don't want the nose higher than the rear.
That said, will adding the Rubi springs leave me vulnerable to needing DS adjustments or other mods to keep things in order? I have the TF sway bar links, but other than the TF spacers that's all I have done so far.
1 - Sport 2 Door
2 - Born with Soft Top only
3 - Front springs..both are 52126314AC
4 - Rear springs..both are 68004255AA
5 - Front & Rear Shocks are the same 68028455AB, black
6 - 4th Digit of VIN is A, Door sticker says GVWR 4900 LBS
7 - 2011 MFG date 02/2011
No tow package... actually, no options at all. 6 speed.
While I currently have and use the dual tops and the hard top is on most of the time, the JK was built with a soft top. The dealer added the Freedom top at my request.
I understand the limitations of the stock Sport shocks and would like to upgrade them. Staying with OE components would be preferable just to keep the dealer happy. I already have a TF Leveling kit and would like to gain a little lift, firm up the ride and reduce dive & squat. Sounds like the Rubi JKU springs and shocks are what I am looking for.
Try as I might, with so many pages in this post I am having a tough time figuring out what my next move is so any help you can offer is appreciated... If I am understanding this, I have 14/55's which would tell me the Rubi JKU springs at 18 or 19/60 would be a step in the right direction towards my goals. Though with the leveling kit in, I don't want the nose higher than the rear.
That said, will adding the Rubi springs leave me vulnerable to needing DS adjustments or other mods to keep things in order? I have the TF sway bar links, but other than the TF spacers that's all I have done so far.
Last edited by MikekiM; 10-17-2011 at 05:09 AM.
#445
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Join Date: Nov 2010
Location: Springfield, VA
Posts: 102
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So I've decided to go with the 19/60 setup and am going to order them brand new. But I want to go ahead and switch over to the rubi shocks as well and found some take offs for a good price. Does anybody know if the shocks off a 2012 are the same as the 2009? As well as the part numbers for the rubi shocks? Thanks
#446
JK Super Freak
I am wondering if the leveling kit will be redundant and/or ultimately leave the nose higher than the rear.
#447
JK Enthusiast
It might help, that I measured before/after with an empty/full tank of fuel, and got about 1/4" difference. A full tank should weigh around 125 lb. A hardtop weighs around 150 lb, and sits about the same as the gas tank in relation to the springs, so you might expect about 1/4" additional deflection with a hard top.
#448
Originally Posted by MikekiM
I am hoping to help the database and get some help with what to do next...
1 - Sport 2 Door
2 - Born with Soft Top only
3 - Front springs..both are 52126314AC
4 - Rear springs..both are 68004255AA
5 - Front & Rear Shocks are the same 68028455AB, black
6 - 4th Digit of VIN is A, Door sticker says GVWR 4900 LBS
7 - 2011 MFG date 02/2011
No tow package... actually, no options at all. 6 speed.
While I currently have and use the dual tops and the hard top is on most of the time, the JK was built with a soft top. The dealer added the Freedom top at my request.
I understand the limitations of the stock Sport shocks and would like to upgrade them. Staying with OE components would be preferable just to keep the dealer happy. I already have a TF Leveling kit and would like to gain a little lift, firm up the ride and reduce dive & squat. Sounds like the Rubi JKU springs and shocks are what I am looking for.
Try as I might, with so many pages in this post I am having a tough time figuring out what my next move is so any help you can offer is appreciated... If I am understanding this, I have 14/55's which would tell me the Rubi JKU springs at 18 or 19/60 would be a step in the right direction towards my goals. Though with the leveling kit in, I don't want the nose higher than the rear.
That said, will adding the Rubi springs leave me vulnerable to needing DS adjustments or other mods to keep things in order? I have the TF sway bar links, but other than the TF spacers that's all I have done so far.
1 - Sport 2 Door
2 - Born with Soft Top only
3 - Front springs..both are 52126314AC
4 - Rear springs..both are 68004255AA
5 - Front & Rear Shocks are the same 68028455AB, black
6 - 4th Digit of VIN is A, Door sticker says GVWR 4900 LBS
7 - 2011 MFG date 02/2011
No tow package... actually, no options at all. 6 speed.
While I currently have and use the dual tops and the hard top is on most of the time, the JK was built with a soft top. The dealer added the Freedom top at my request.
I understand the limitations of the stock Sport shocks and would like to upgrade them. Staying with OE components would be preferable just to keep the dealer happy. I already have a TF Leveling kit and would like to gain a little lift, firm up the ride and reduce dive & squat. Sounds like the Rubi JKU springs and shocks are what I am looking for.
Try as I might, with so many pages in this post I am having a tough time figuring out what my next move is so any help you can offer is appreciated... If I am understanding this, I have 14/55's which would tell me the Rubi JKU springs at 18 or 19/60 would be a step in the right direction towards my goals. Though with the leveling kit in, I don't want the nose higher than the rear.
That said, will adding the Rubi springs leave me vulnerable to needing DS adjustments or other mods to keep things in order? I have the TF sway bar links, but other than the TF spacers that's all I have done so far.
#449
JK Super Freak
Definitely go with the 19/60's, if you want the max ride height. Rubi shocks will help with the ride quality for sure! You'll get a couple inches, maybe more, with 'em! If you're thinking of loading up the front with new bumper, maybe a winch, a 3/4 level will work out fine. Did my Rubi that way and she's perfect!
Long term plan is for a winch in the stock bumper that I just stubbied. Not likely to change the rear bumper.
Do I understand correctly that you are suggesting the 19/60's and using only one of the TF spring pucks?
#450
Originally Posted by MikekiM
Thanks..
Long term plan is for a winch in the stock bumper that I just stubbied. Not likely to change the rear bumper.
Do I understand correctly that you are suggesting the 19/60's and using only one of the TF spring pucks?