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Old 01-01-2010, 08:08 PM   #1
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Rubicon coil springs

Will Rubicon coils out of a 09 be a direct fit in my 05? I have a chance to get a set of springs for a good price but want to make sure they will fit. I was told they would give a slight lift, maybe .75" to 1".
Thanks

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Old 01-01-2010, 08:37 PM   #2
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yea i am looking into this as well. Lets see what the experts say

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Old 01-03-2010, 11:34 AM   #3
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My educated response is:I doubt it.
I do have 06 Rubicon springs in the garage.
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Old 01-03-2010, 12:33 PM   #4
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They will fit but they are the same height as your present springs. They are a bit stiffer than some (but not all) TJ springs but you'll gain no additional height unless your Jeep is a stripped down 2.5L model where its lighter weight will make it sit a bit taller due to the stiffer springs.
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Old 01-03-2010, 02:46 PM   #5
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I doubt it too. JK springs probably won't fit without modification into the TJ buckets. TJ Rubi springs will, but like Jerry said they won't guve you any lift. I had a complete set given to me & they are no taller than a regular TJ. Luckily I didn't tear mine apart to find out. I had another set of stock TJ springs sitting around to check heights.
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Old 01-03-2010, 02:48 PM   #6
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Originally Posted by cheapjeep71 View Post
I doubt it too. JK springs probably won't fit without modification into the TJ buckets.
Whoops I didn't catch that the springs were out of a JK, they won't fit a TJ.
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Old 01-03-2010, 08:17 PM   #7
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If they are the same length, but stiffer. He would see a resultant slight lift with the same weight jeep.
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Old 01-04-2010, 08:27 AM   #8
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Actually a stiffer spring is what I want. As of right now there is no lift planned for the jeep, what I do with it stock height works very well and if fits in the garage. the problem I am having though is with a couple adults (approx. 400-450 lbs.) and some gear the rear suspension is bottoming out too easily on the trails.
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Old 01-05-2010, 08:39 AM   #9
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Does anyone know if there is a factory option for a coil with a stiffer spring rate?
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Old 01-05-2010, 09:38 AM   #10
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Compare the nimbers on your springs with the numbers on Bigstonz...his may be stiffer and what you're looking for.
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Old 01-05-2010, 10:01 AM   #11
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when i got mine it had a 2" spring lift on it I dont know which brand but it rode nice and looked good.The guy I bought it from said it was cheep.
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Old 01-05-2010, 10:08 AM   #12
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95-96 zj v8 front springs will fit and give you some lift.
I got back about 1.5 inches after installing fenders, bumper,winch etc
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Old 01-05-2010, 10:05 PM   #13
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Looked at my springs tonight and couldn't find any part numbers on them to compare to Rubicon springs. I just need to find a stock height, but stiffer spring to keep the suspension from bottoming out on the trail.
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Old 01-05-2010, 10:26 PM   #14
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the front springs will go right on, and might provide a minor lift. the rear springs however will need to be modified to fit. you will either need to cut the very top coil end off the spring. the top coil of the rear JK springs wont fit over the bumpstop cup on a TJ. HOWEVER
you can unbolt the cup from the frame, slip it into the coil spring and bolt it back up with the spring attached to it, there is still some minor trimming that would need to be done to do this but its very very minor.
a guy I know on another forum added some free JK unlimited springs to his LJ and this setup along with a spacer up front to level it out provided enough clearance to run 35's on said LJ. its a DD and doesnt get wheeled very hard (because he has a BUILT TJ for that) so I dont know this setup wheels but it is very doable.

I have a buddy with a JKu sahara with some coils laying around I am considering grabbing and throwing on my LJ and cutting the top rear coil just to see where it gets me. if it lets me stay at a similar height I am at now (2" BB) but do away with the spacers, I may just do it.
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Old 01-06-2010, 06:44 AM   #15
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the front springs will go right on, and might provide a minor lift. the rear springs however will need to be modified to fit. you will either need to cut the very top coil end off the spring. the top coil of the rear JK springs wont fit over the bumpstop cup on a TJ. HOWEVER
you can unbolt the cup from the frame, slip it into the coil spring and bolt it back up with the spring attached to it, there is still some minor trimming that would need to be done to do this but its very very minor.
a guy I know on another forum added some free JK unlimited springs to his LJ and this setup along with a spacer up front to level it out provided enough clearance to run 35's on said LJ. its a DD and doesnt get wheeled very hard (because he has a BUILT TJ for that) so I dont know this setup wheels but it is very doable.

I have a buddy with a JKu sahara with some coils laying around I am considering grabbing and throwing on my LJ and cutting the top rear coil just to see where it gets me. if it lets me stay at a similar height I am at now (2" BB) but do away with the spacers, I may just do it.

Do you know if the springs out or a TJ Rubicon are much stiffer (if at all) than a standard TJ?
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Old 01-13-2010, 07:25 PM   #16
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Originally Posted by ram4x4 View Post
Do you know if the springs out or a TJ Rubicon are much stiffer (if at all) than a standard TJ?
Also interested in this? I have a stripped down 2.5L SE, and would be interested in trying to get the coils out of a newer TJ Rubicon/Unlimited if it's a direct swap.
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Old 04-06-2010, 10:39 PM   #17
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Any more info?

I did a search looking for an answer to the exact question ram4x4 is asking. Is there any new insight to the question - Are Rubicon springs stiffer/will have a higher weight capasity than stock springs? I loaded my jeep this last weekend and it was squatting pretty good. I know I could go with a heavier spring from OME, but I want the vehicle to still fit in the garage. Thanks.
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Old 04-06-2010, 10:40 PM   #18
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They hard a stiffer spring rate but will only add height to your Jeep if your springs are sagging
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Old 04-09-2010, 08:31 PM   #19
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Springs on their way

I've got a set of 05 Rubicon Unlimited springs on their way at the end of the month. I will do the swap and see if there is any difference in the amount of suspension squat. I'll try and measure everything before and after, as well as take pics along the way. If anybody wants anything specific along the way, let me know. Thanks.
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Old 04-09-2010, 09:00 PM   #20
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Originally Posted by ryanhewitt View Post
I did a search looking for an answer to the exact question ram4x4 is asking. Is there any new insight to the question - Are Rubicon springs stiffer/will have a higher weight capasity than stock springs? I loaded my jeep this last weekend and it was squatting pretty good. I know I could go with a heavier spring from OME, but I want the vehicle to still fit in the garage. Thanks.
I had quite a bit of sag on the front end of my '98 TJ....I put some springs out of an '06 Rubicon on there and it leveled it out perfectly. Has remained level for the last 3 years now. Yeah I'm sure they'll sag eventually also but it was a cheap, quick fix for that horrible looking sag on my front end. Just my $.02
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Old 06-18-2010, 11:59 PM   #21
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Data gathered

Well I did the swap. The short answer is that, yes it helped my vehicle.

A little background. My jeep is an 01' Sahara with approx 90k miles. I'm the second owner and acquired it with 44k on the ode. The first owner really didn't use the vehicle, so it was in great condition. I've used/use the vehicle (not abuse), hence the reason for trying this little experiment.

I currently use the vehicle as a recreation/work vehicle. It's not a daily driver. It will get loaded for camping and field survey work. This means the roof rack gets loaded to capacity (300 lbs.) and 2 -3 adults inside.

The vehicle had 5605235 AA springs in the front and 52089104 springs in the rear. These were replaced with 05' Rubicon LJ 5605235 AA springs in the front, and 52060130 AA rear springs. I don't know the mileage on the Rubi springs but were a lot cleaner than mine.............

The initial measurements were taken with the vehicle empty (nothing in the back and nothing on the roof), 33 psi in the tires, full tank of gas, and from the bottom of the stock bumpers at the furthest out end.

Stock springs:
Drivers front - 19 1/4 inches
Passenger front - 19 inches
Drivers rear - 15 5/8 inches
Passenger rear - 15 5/8 inches

Rubicon Springs
Drivers front - 19 5/8 inches
Passenger front - 19 1/2 inches
Drivers rear - 16 5/8 inches
Passenger rear - 16 3/4 inches

Loaded measurements were taken with with vehicle loaded as mentioned above (minus the people inside for the measurement), approx. 100 miles from loading point, at the same gas station, after fueling to a full tank, and same location from the stock bumpers.

Stock springs:
Drivers front - 19 1/2 inches
Passenger front - 19 5/8 inches
Drivers rear - 14 inches
Passenger rear - 14 1/4 inches

Rubicon Springs
Drivers front - 19 3/4 inches
Passenger front - 19 1/2 inches
Drivers rear - 14 7/16 inches
Passenger rear - 14 1/2 inches

So I did net a little out of it. The only difference between measurements was an awning that was installed before the Rubicon spring measurements. I don't think it really affected comparison though.

I have photos that I can post at photobucket if anyone wants to see the before and after. Thanks.

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