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  #13  
Old 10-29-2013, 01:10 AM
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Re: 2005 WK Lift/theories/help

No problem So, have you had a chance to review the OME instructions and whether or not the springs were labeled for said instructions to indicate what position they go in?
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Old 10-29-2013, 05:13 AM
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The rear springs(OME-2993) come as a set and from what I've seen and remember, they're identical. No markings or packaging to indicate that one is different than the other.
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Old 10-29-2013, 06:55 PM
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Re: 2005 WK Lift/theories/help

And you are only having the side to side lean issue in the rear? Or both front and rear?
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Old 10-29-2013, 07:18 PM
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Just the rear. I've seen some others saying they had a similar issue on the driver's side.
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Old 10-29-2013, 07:20 PM
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Re: 2005 WK Lift/theories/help

This is an old thread from another site that got me "on the trail" of knowing that there are different spring rates for the WK. It is talking about the XK (Commander), but that vehicle is the basically the same chassis wise as the WK. It just has a bigger body and a lot more weight to carry around.

XK & WK weight and weight distribution comparison !! for OME coils rating selection [Archive] - Jeep Commander Forums: Jeep Commander Forum


And here is a thread that I first read a while back as I was thinking of getting factory XK coils or WK Diesel Coils for a possible "factory lift", since mine has a lighter drivetrain than those models. It also talks about the spring rate differences.

XK & WK weight and weight distribution comparison !! for OME coils rating selection [Archive] - Jeep Commander Forums: Jeep Commander Forum
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Old 10-29-2013, 07:25 PM
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Re: 2005 WK Lift/theories/help

See if you can open my 2013 OME book. Check out page 4. It talks about there being an "A" Spring and a "B" spring. Page 15 lists only the front and rear medium or heavy duty part numbers, but no "A" or "B", nor any coil rate. But.......page 129 does list the rates for the part numbers and in fact shows the rear springs are an "A" and "B" spring. Looks like OME only has 10lbs per inch rate difference, but still, maybe that's enough to keep from having the lean.
Attached Files
File Type: pdf OME Guide 2013.pdf (1.74 MB, 1 views)
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Old 10-29-2013, 07:26 PM
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Re: 2005 WK Lift/theories/help

Also, if you want some future options, here is some reading/eye candy
Attached Files
File Type: pdf Bilstein Offroad Catalog 2013.pdf (3.24 MB, 4 views)
File Type: pdf King Shocks Catalog 2013.pdf (2.63 MB, 1 views)
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Old 10-30-2013, 12:58 PM
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Re: 2005 WK Lift/theories/help

Thanks Mosier, you're all over this. Definitely will be getting some reading in this weekend. Going to look my springs over and see if i can't identify them as well. Might have to do a flip-flop. If what you say about the spring rate is accurate, I asssume it is, 10 lbs is a big difference. If you have +10 on the passenger and -10 on the driver because the springs are switched.
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Old 10-30-2013, 11:08 PM
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Re: 2005 WK Lift/theories/help

Putting it that way, yeah, that would make a noticeable difference. Now I rechecked the book, here is a condensed version:

Page 4:


LEAF SPRINGS:
A & B springs can be used to compensate for uneven vehicle weight distribution. Springs marked "A" have a greater camber height than springs marked 'B'. 'A' type springs are generally fitted to the driver's side and 'B' springs to the passenger side.

COIL SPRINGS:


A & B springs are used to compensate for uneven vehicle weight distribution. 'A' type springs are generally higher in free height than the 'B' spring. Individual coil specifications are listed in the back of this publication.


Then we have the WK Part numbers from page 15:

Front (to 40KGS): 2990
Front (41 to 100KGS): 2991

Rear Medium Load: 2992
Rear Heavy Duty: 2993

What struck me about this is that:

1) Straight out of the book OME lists these part numbers for both 2005-2010 WK and 2006-2010 XK.

2) They are also listed for both models in Petrol (gas) or Diesel.

3) OME states front lift at 50mm, and rear at 55mm.

4) The "A" and "B" Spring notation is absent here.

5) There is no "Medium" or "Heavy Duty" reference for the front, only specific weight carrying capacity rates. Only the rear springs are referred to as such, but without the rates.

6) I find it a bit strange that only two choices in spring rate can cover two different vehicles (as far as vehicle weight), with two different powertrains (Gas or Diesel), across at least four years production time. Given that the WK and XK are the same chassis, I got it. But the differences in curb weight and various options plus possible minor design changes and the different possible variations in drivetrain selection and therefore weight, to me, seems like there should be a few more spring rate choices, But, I dunno. I don't design and build this stuff for a living. I'm just stating what pops out to me.

Then we get to page 129 (See attached):

On the chart it lists for these part numbers the same static height (free) for the front springs, but different ("A" and "B") static heights (not load ratings as I had previously mentioned. Doh! I had to look at it closer!) for the rear springs. Another neat thing here is it also lists what the factory spring rates are. I find it interesting that OME only lists one factory rate for the front, and one for the rear. There are a great many MOPAR part numbers for each location for factory springs on these vehicles.

After looking at this again, my guess is the higher (both standing fresh out of the box on level ground right next to each other) rear spring goes on the driver side.

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File Type: png OME pg 129.png (53.6 KB, 6 views)
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Old 10-31-2013, 07:09 AM
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That's a very good observation on the OME springs. You would think there would be more options to choose from. With the various powertrains and engine types, some more options would be ideal. Then again, not many companies have put up a competitive lift with OME for the WK/XK.
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Old 10-31-2013, 09:01 PM
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Re: 2005 WK Lift/theories/help

I agree. But, in their defense, the WK market is pretty small. So their return on investment probably does not make a good business case. The most recent "damn the market data, we are doing this anyway" product I have seen for the WK is RCV's replacement CV axles. These look pretty mean, and have a price to match.

Ultimate IFS CV Axle Set for Jeep Grand Cherokee WK ('05-'10) - Standard or Open Differential
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Old 11-01-2013, 10:05 AM
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Wow. Yea those axles would be nice haha.
The WK market is small unfortunately. I have only seen one lifted XK in my area and that was on the highway. Maybe one day I'll see a fellow lifted WK wheeler.
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