Old Man Emu 2.5" lift - JeepForum.com
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post #1 of 22 Old 05-13-2013, 02:43 AM Thread Starter
PrinceBondar
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Old Man Emu 2.5" lift

So, I installed this supposedly 2.5" lift this weekend. I got the "heavy" load kit (http://www.quadratec.com/products/16090_02X4_PG.htm), considering I have an AEV front bumper with Warn 9500ti winch and AEV skid plate, Mopar off-road rear bumper and AEV corner guards. All of that adds up to the 300 pounds of additional capacity this lift kit is supposed to provide. I ended up with 3" of lift in the front, and 4" of lift in the back. That's way too much, and way more than I want. Before I "undo" all of this and put it back to stock, and besides the standard "it will settle some" commentary, is there anything I should try to get this lift down to the 2.5" it is supposed to be?

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post #2 of 22 Old 05-13-2013, 06:28 AM
S1L3NT_WH33L3R
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Pictures?

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post #3 of 22 Old 05-13-2013, 07:43 AM
jopolly3
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Quote:
Originally Posted by S1L3NT_WH33L3R View Post
Pictures?
Agreed, I would like to see this too. I have the same lift sitting in the garage and I want to see what I am dealing with here. I seem to be seeing a lot of "this lift is way taller than advertised" going on...

Joe

2013 JKU Rubicon 6spd: ARB Dana 44 covers F&R, Expedition One front bumper & swaybar skid, Hella driving lamps, JKS adjustable track bars F&R, MBRP SS off-road exhaust, OME HD springs and shocks, OME relocated SS, Rock Hard 4x4 gas tank skid, Rock Hard 4x4 oil pan skid, Rock Hard 4x4 rock sliders, Rock Hard 4x4 transfer case skid, Spidertrax wheel spacers, Superwinch LP8500 Gen 1

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post #4 of 22 Old 05-13-2013, 08:11 AM
tyvanwie
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You should never buy an old man emu lift based on the supposed lift height, because it's all general. Each jeep is different and weighs different, you obviously don't need the heavy springs. At least not in the rear.

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post #5 of 22 Old 05-13-2013, 08:23 AM
222Doc
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about all spring lifts will be taller than spec. You could add more weight. steel front fenders, full plated sides. on board air and tanks sport cage. 300pounds of gear ect. My 3.5 was at least 4 font 4.5 rear.

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post #6 of 22 Old 05-13-2013, 08:39 AM
jopolly3
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What is the numeric spring rate difference between the stockers and OME HD's?

Joe

2013 JKU Rubicon 6spd: ARB Dana 44 covers F&R, Expedition One front bumper & swaybar skid, Hella driving lamps, JKS adjustable track bars F&R, MBRP SS off-road exhaust, OME HD springs and shocks, OME relocated SS, Rock Hard 4x4 gas tank skid, Rock Hard 4x4 oil pan skid, Rock Hard 4x4 rock sliders, Rock Hard 4x4 transfer case skid, Spidertrax wheel spacers, Superwinch LP8500 Gen 1

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1960 CJ-6: Never ending project rig

Build Threads:

JKUR - http://www.jeepforum.com/forum/f96/j...hread-1522982/

CJ6 - http://www.jeepforum.com/forum/f8/jo...hread-1347975/

WJ - http://www.jeepforum.com/forum/f197/...auren-1033184/




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post #7 of 22 Old 05-13-2013, 08:59 AM
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If you got the HD springs then yes you will get around that amount of lift. Everyone who has installed the HD springs has had this happen. I would take out the HD springs and go with the SD, that should lower it a little bit.
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post #8 of 22 Old 05-13-2013, 09:01 AM
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Quote:
Originally Posted by jopolly3 View Post
Agreed, I would like to see this too. I have the same lift sitting in the garage and I want to see what I am dealing with here. I seem to be seeing a lot of "this lift is way taller than advertised" going on...
Not sure if you have the JK or JKU. Here is a JKU on 35's with the HD 2.5" OME springs.

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post #9 of 22 Old 05-13-2013, 09:02 AM
RockyClymer
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From an old post by Border Dave:

OME spring rates:

Front light duty: 150 lbs./inch
Front heavy duty: 150 lbs./inch (The only difference is these are a little longer)

Rear light duty: 140 lbs./inch
Rear heavy duty: 160 lbs./inch

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post #10 of 22 Old 05-13-2013, 09:19 AM
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Not just OME, but a point about all spring lifts

Stock Jeep coils are numerically rated, anywhere 13 to 19 upfront, and 54 to 60 out back. The higher the #, the stiffer (higher capacity/spring rate-not length) of the spring.

I've heard comments of anywhere from 1/3" to 1/2" difference in realized height per each numerical increase factory spring height.

Even using the 1/3" increment, that means that here could be almost 2" difference in the stock height of any given jeep from the factory, depending on springs and the weight of vehicle options.

The only reference point any of the manufacturers can make is a generalized one. My guess would be that they shoot for the average, or middle of the pack, but that still doesn't account for differently optioned vehicles.

I think this is one of the biggest factors we see so many 'what lift/what size tire?' threads- because there are so many variables from the start.

I see alot of conversations about lifts, and a lot about stock spring heights, but hardly ever a thread with both points together.



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post #11 of 22 Old 05-13-2013, 10:44 AM Thread Starter
PrinceBondar
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Quote:
Originally Posted by tyvanwie View Post
You should never buy an old man emu lift based on the supposed lift height
I didn't. I bought it on the supposed "300 pounds of additional weight capacity" - and it was rated at 2.5" of lift. Frankly, 0" of lift would have been fine with me - I wanted the weight capacity.
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post #12 of 22 Old 05-13-2013, 12:02 PM
RockyClymer
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The HD OME rear springs at 16 lb/in, would give you 320 lb of load with a theoretical drop of 1 inch...I say theoretical because a small portion of the load, even in the rear, would ride on the front. The closer over the rear axle, the more on the rear axle. The rear seat is fwd of the axle, so friends weight would be distributed.

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post #13 of 22 Old 05-13-2013, 12:20 PM
jonballi
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Quote:
Originally Posted by COLOUXJ View Post
Not sure if you have the JK or JKU. Here is a JKU on 35's with the HD 2.5" OME springs.

I am looking to purchase this exact same lift for my JKUR. Did you run into any issues with the OME HD lift?
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post #14 of 22 Old 05-13-2013, 12:27 PM
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I had no issues at all, still run it and like it a lot. Great ride on and off road. I installed JKS adj track bars and Teraflex adj control arms rear and Rock Krawler front.

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post #15 of 22 Old 05-13-2013, 12:58 PM
Noxian
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i am running the HD lift on mine, but with my bumpers, extra armor etc it settled down to exactly 2.5" of lift
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