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Old 12-09-2013, 05:45 PM   #1
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2.5 OME or Factory

So there might already be a thread on this so bare with me.

Bought an 03 sport that came with a 2.5 OME lift on it. From there I started doing research on the lift itself. For the 2.5 inch lifts they do not sell front coil spacers for tj's instead they give you a whole new spring.

My problem is that I have a spacer on my front coils and don't understand why. My logic is that maybe the previous owner did the cheap way out and put spacers on factory springs.

Is there a way to tell on the springs to find out if they are ome or factory? I only have this problem on the fronts not the back. So is this a true OME lift or a Frankenstein lift?

Pic of front coil springs
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Old 12-09-2013, 05:55 PM   #2
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Front stock tj springs measure approximately 12" at ride height. Measure your front springs while sitting even, if they are close to 12" they're stock, if they're about 14 1/2" they are 2 1/2" springs.

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Old 12-09-2013, 07:31 PM   #3
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I have a 2.5 OME lift sold by DPG. That spacer isn't part of it.

On a stock set up, there is a rubber pad on top of the coil about 3/4 inch thick maybe 5 or 6 inch diameter, but kinda shaped like a smashed/melted Hershey Kiss with a doughnut hole. DPG included an extra one of those to stack on the original to even out the ride height. With my rear bumper/tire carrier weighting the rear down now with 100 extra pounds, I'm now considering removing the extra 3/4 inch pad to have just a bit of forward rake.
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Old 12-09-2013, 09:12 PM   #4
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Quote:
Originally Posted by Water Dog View Post
Front stock tj springs measure approximately 12" at ride height. Measure your front springs while sitting even, if they are close to 12" they're stock, if they're about 14 1/2" they are 2 1/2" springs.
Do you know what the stock measures are for the rear coil springs as well?
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Old 12-10-2013, 03:10 PM   #5
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So if I where to take out the spacer and replace it with the correct spring ( same height) will I need to realign everything underneath? Like the axle, track bar, control arms, etc.
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Old 12-10-2013, 04:41 PM   #6
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If the amount of lift doesn't change significantly then you shouldn't have to make any adjustments
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Old 12-10-2013, 11:28 PM   #7
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I'm in the process of changing out my old 2.5" OME springs on my TJ for new.
The OME springs will have a tag on them with their part number.
From memory, my 8 year old rears measure 14 1/2" OA.
The new replacements are about 15 1/4" OA.

If you are wanting any other notes, I will try to help.
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Old 12-10-2013, 11:42 PM   #8
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OME spring tags

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Old 12-11-2013, 03:06 PM   #9
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What does OA stand for and where were the tags located?
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Old 12-11-2013, 03:34 PM   #10
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Sorry for all the questions but what are the rear springs height as well.

I messed mine and my rears are about 10 and my fronts are about 12 give or take. So it looks like I got stock springs in front but upgraded ones in the back, correct?
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Old 12-11-2013, 04:33 PM   #11
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OA is over all.

New, just out of the box

OME 933 (front) springs: 19 1/8"
OME 942 (rear) springs: 14 3/8"
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Old 12-11-2013, 06:44 PM   #12
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I'd say by your measurement you have stock springs all around with spacers. Possible spacer only up front from excessive sage?
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Old 12-12-2013, 09:08 PM   #13
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Quote:
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OA is over all.

New, just out of the box

OME 933 (front) springs: 19 1/8"
OME 942 (rear) springs: 14 3/8"
And how much will these new springs give you in additional height once installed? 2 inch, 2.5 inch, or 4 inch?
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Old 12-12-2013, 09:35 PM   #14
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You purchased the Jeep with the OME lift already on it. I am willing to bet that the previous owner put a spring spacer on top of the OME front springs to level it out, and your front are rear springs are all OME. Very common practice. There is also an isolator spacer that comes stock on all TJ's too. Maybe he had a winch on it that he removed before he sold it??

Either way, the spacer not too difficult to remove. You may get lucky and only have to adjust your drag link to center your steering wheel afterward. The only alignment to be done on a TJ is setting the toe. Check out stu's site. Lots of good stuffs there.
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Old 12-12-2013, 10:40 PM   #15
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Quote:
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And how much will these new springs give you in additional height once installed? 2 inch, 2.5 inch, or 4 inch?
Sorry, can't really answer that. From stock I don't know.
I am pulling my old OME 2.5" springs that I had and replacing with the same, but new.
I expect the gain will be less than 1".
I have been thinking my right rear spring felt soft, so I decided to replace them all with the same I already have.
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Old 12-13-2013, 02:21 AM   #16
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OME springs are high quality and just do not sag much after the first three months is my experience (mine are 9 years old). What happens is that the Jeep owner makes mods to the Jeep - adds bumpers, tire carriers, lights, etc. and causes the springs to compress with additional weight. Then they blame the springs for sagging.

If the PO put spacers up front, he probably had a winch or a heavy bumper or dual batteries or some other weight up front.

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