OME spring options
- Thread starter ChadH
- Start date
Years ago, I put together a load assist system that made sense to me because nothing else people were doing made sense (see above).
Measure inside diameter of the coil spring. Measure the distance between the lower bump stop pad and the bottom of the jounce.
Find an Airlift bag with a deflated size that closely fits the space you measured.
The goal is to choose a bag that starts to provide load assist the moment you start to inflate it. This prevents a typically undersized bag (again, see above) from inflating into a hard ball before it even begins to reach the boundaries of the bump stop. Memory says I was using a bag for a Toyota something.
Keeping the jounces intact maintains their intended function while also providing a softer surface for the bag to react against.
Another thing I did was run the bags empty with an open bleed valve to prevent the unused bag from influencing the suspension.
This worked well for the several years I had it. It was invisible when not in use and only required just enough air pressure to restore the ride height.
Ultimately, I realized I didn't use it often enough to carry it over to the later suspensions the Jeep evolved into.
Does anyone have any experience with this product?
Dual control, integrated compressor (444c) and 2 gal tank. Can also be used to air up tires. I'm mostly curious about the single 444c compressor which I believe is a viair compressor. Usually I have a dual ARB for redundancy but I've never used nor seen in person a 444c.
https://www.airliftcompany.com/shop/74100EZ
Dual control, integrated compressor (444c) and 2 gal tank. Can also be used to air up tires. I'm mostly curious about the single 444c compressor which I believe is a viair compressor. Usually I have a dual ARB for redundancy but I've never used nor seen in person a 444c.
https://www.airliftcompany.com/shop/74100EZ
Hi everyone,
Let’s try to answer this straightforward question:
Which shocks and springs should I use to upgrade my 100% stock LJ (with hardtop, stock front and rear bumpers) without spacers and without exceeding a 2” lift?
After spending my entire Sunday researching, I couldn’t find a clear consensus, but here’s what I’ve gathered so far:
• Front: OME 2933 (Heavy Load) – These should lift the LJ approximately 2”.
• Rear: OME 2941/ 2942 (Medium / Heavy Load for TJ) – These seem to maintain a 2” lift for the LJ as well. (2949 is the Heavy-Duty option specifically for the LJ but might lift it more than 2”).
If anyone has experience with this setup or better recommendations, I’d greatly appreciate your input!
Let’s try to answer this straightforward question:
Which shocks and springs should I use to upgrade my 100% stock LJ (with hardtop, stock front and rear bumpers) without spacers and without exceeding a 2” lift?
After spending my entire Sunday researching, I couldn’t find a clear consensus, but here’s what I’ve gathered so far:
• Front: OME 2933 (Heavy Load) – These should lift the LJ approximately 2”.
• Rear: OME 2941/ 2942 (Medium / Heavy Load for TJ) – These seem to maintain a 2” lift for the LJ as well. (2949 is the Heavy-Duty option specifically for the LJ but might lift it more than 2”).
If anyone has experience with this setup or better recommendations, I’d greatly appreciate your input!
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With only a stock front bumper, you don't need the heavy duty front coils. Those are supposed to be for bumper and winch options. OME does list the spring rate in their catalog online. Most people I have read ended up with about 2.5" of lift, so a little over 2". But you could try and factor in some purposeful sag by using a lighter spring than needed to make sure its not higher than 2", though that's not really the proper way to go about it. it looks like Synergy still makes a 2" spring as well but they aren't listing any specs on it https://www.synergymfg.com/jeep/jee...-jeep-jk-tjlj-xj-front-lift-coil-springs.html. You could also try contacting Robinson https://dobinsonusa.com/products/do...p-wrangler-tj-1996-2007-3-0-lift-medium-load/. They make a 3" spring at stock load though, but they have made custom coils for some of the guys on the JT forum I believe so they might do that for the TJ. I have heard of problems with their powder coating failing causing the springs to rust though so be aware of that.
I tried the 2949 rear springs and didn't like them . I might try the 2941 springs later , but currently I'm just running stock rear springs with a 2 inch Streetwrays spacer . Rides much better than the 2949 springs . Front springs are 2932 with a 1 inch spacer . It clears my 255/85r16 , 33 inch tires . I'll have to take a picture of my current setup and post it . Also I am running Black Max shocks .
I'll have to disagree. On my stock LJ (no winch, OEM bumper), the OME 2932 (light) springs only gave a 1" lift on the front. Others have said that even with the 2933 (heavy) springs, you don't quite get 2" on the front of the LJ.
Yes there is sooooo many different answers and different experience with those coils... it's crazy.
I think will just go for 4x 1.5" spacer and 4 new rancho, Bilstein or OME shocks
It’s pretty standard to go with 933/942 and then use spacers to get it where you want. This is nothing crazy. Jeeps weigh different amounts and that is true for the stock configurations Rubicon, Sport, Sahara, and X.
Nothing wrong with running 1.5 inch spacers . It will maintain the current ride comfort , depending on shocks and tires .
Make sure you check your toe in after lifting .
Make sure you check your toe in after lifting .
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Your comments ("didn't like them") make no sense whatsoever without giving the context as to how your shock travel/bias was across these setups (yes, even with the same set of shocks). Whatever changes you felt were NOT from the spring. Did you watch that video I posted earlier in this thread?
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It makes plenty of sense . The ride height is the same , shock travel is the same , shocks are the same . Now the Jeep rides smoother without the 2949 springs .
Yes , I watched the video and I am fully aware of how a vehicle with no shocks will behave .
Yes , I watched the video and I am fully aware of how a vehicle with no shocks will behave .
Can you explain how it makes "plenty of sense"?
If you put the 934 OME springs with 216lbf/in on your rig with no shocks and drive around.
Then you put OEM springs with 160lbf/in on your rig with no shocks and drive around.
Will you be able to tell a difference? Explain how you are able to detect the extremely subtle difference. Do you have super powers?
DeltaNu1142
TJ Enthusiast
This is the thread I was looking for when I bought my OME springs at the end of last summer… 
Unfortunately, the prevailing experience isn’t consistent across the board…
I have 2933/2949 coils ready to put on my LJ with a front bumper and winch… I’m just sourcing the other stuff. I have CAs on the way, still need track bars, shocks, and the other little bits.
My goal is to run 33s on the stock Moabs. I installed the front bumper last summer, and the front dove enough on the tired stock springs that I didn’t dare add the winch.
I have no goals for ride quality. The 5000x’s are on my radar, but for whatever reason I’m oblivious to ride harshness unless someone else points it out.
I’ll try to remember to post here after I’ve done it.
Unfortunately, the prevailing experience isn’t consistent across the board…I have 2933/2949 coils ready to put on my LJ with a front bumper and winch… I’m just sourcing the other stuff. I have CAs on the way, still need track bars, shocks, and the other little bits.
My goal is to run 33s on the stock Moabs. I installed the front bumper last summer, and the front dove enough on the tired stock springs that I didn’t dare add the winch.
I have no goals for ride quality. The 5000x’s are on my radar, but for whatever reason I’m oblivious to ride harshness unless someone else points it out.
I’ll try to remember to post here after I’ve done it.
BanjoJeep
Member
I got 932s for the front and 941s for the rear, but haven't installed them. I'll be fully stock bumpers and no top, basically no extra weight, but I'll typically have 2 adults and 2-3 kids in it so that might get heavy. Now I'm getting stressed that I'm not gonna have much lift at all. Didn't get spacers but I suppose I'll order them just in case. Maybe I should stop reading forum posts.
BanjoJeep
Member
Attached photos for comparison are 2932 front and 2941 rear, compared to stock takeoffs from a 1999 TJ Sport 4.0 manual. Stock fronts measure 17", OME fronts measure 19". Stock rears measure 12", OME rears measure 15".
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You should be good with 32 inch tires . You might have to install front spacers to level it out , but you won't really know until you get the springs installed . I would drive it a little to see where it is settling then measure how much lift you need to bring the front up . Spacers might not be necessary it might sit just fine . I've changed mine out a few times to find the balance between ride height , performance and comfort . I'm currently running 11 years old 932 front springs with a 1 inch spacers . Rear springs are stock Lj springs with 2 inch spacers . I do have a winch on a stock front bumper . Rear has a slightly heavier bumper than stock and a 58 lb spare tire on a steel wheel . It is sitting level with 33 x 10 inch tires . I have 2 inch bump stops spacers .
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