problems leveling D90 with OME Suspension - Defender Source
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  #1  
Old March 17th, 2011, 10:44 PM
mrossi
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Mike Rossi
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problems leveling D90 with OME Suspension

I recognize that no D-90 sits the same, but I am having a hard time trying to figure out whats gone wrong with a OME suspension upgrade. I've got a 1995 D90 ST. I have replace the Suspension with OME751 HD springs in the front and OME764 ST springs inn the rear. At this point the truck is actually sitting higher in the rear than the front (I have not even mounted the Mantec Bumper with Husky Winch yet). Even the guys at Rovers North are puzzled. They recommend that I install the HD springs in the rear as well because they are slightly short in overall height... go figure!

Ant idea's or suggestions?
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  #2  
Old March 18th, 2011, 03:33 AM
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Tony Sims
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Shim the front. Once you have the truck all set up, measure the amount you want to raise the front and cut some aluminum spacers to put under the spring plates. Add longer bolts and Presto! Levelness.
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  #3  
Old March 18th, 2011, 07:50 AM
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Phillip
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751 front 764 rear. I ran the taller 751s on front no sure if that's a PS or DS handed spring with those rubber shock tower rings. Shorter 764s on the rear. I don't recall which "side" is taller. My truck sits pretty level front to rear side to side is another issue, I just gave up. U
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  #4  
Old March 18th, 2011, 08:00 PM
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In the future, just get Rovertym Springs. You can't even compare the quality
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  #5  
Old March 18th, 2011, 09:05 PM
mrossi
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Mike Rossi
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At this point i might be throwing out the OME and trying Rovertym. Ugh! Seriously, Is there a chance that the Springs have a quality control issue???

As for the height... The 764's are actually taller (I assume that accounts for the compression ratio of the SD vs. the HD) I have double checked the sides (A vs. B). They are correct per OME. I'll try just about anything. Can someone point me to "shims"?
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  #6  
Old March 18th, 2011, 11:24 PM
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Carl Jonsson
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How much higher is it in the rear?

Call ARB and talk to them before you anything else. They will know. HD in the rear is only recommended if you plan on having a MINIMUM constant load of 440 lbs. I have the same set up as you (MD in the rear, HD in front), recently installed and it sits a little bit higher in the rear. I don't mind. It makes me feel better about fully loading it for trips.
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  #7  
Old March 20th, 2011, 05:33 AM
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OME HDs always sit higher in the rear when the truck is unloaded. I think mine has about a 1in rake to it.
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  #8  
Old March 20th, 2011, 03:45 PM
mrossi
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Mike Rossi
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The rake is only half the issue. I have uneven height side to side as well. We'll see what ARB has to say on Monday. Thanks for the responses.
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  #9  
Old March 20th, 2011, 04:18 PM
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Michael Ullman
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Keeping an eye on this as my son and I just finished installing an OME lift this weekend on his Disco and now the drivers side sits over an inch high at the front. It was 5/8 with the factory set up. Not sure what we did wrong but..................????
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  #10  
Old March 20th, 2011, 06:31 PM
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tell your son to gain weight. They are supposed to sit level left to right with the driver in the truck.
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  #11  
Old March 21st, 2011, 05:58 PM
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Mike Rossi
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Found half of my problem. When installing the springs, I was misinformed by RoversNorth about "A" vs"B" springs. I had both "A"s on the Drivers side. I spoke to ARB - they explained that I have to swap the rears.
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  #12  
Old March 21st, 2011, 11:00 PM
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Carl Jonsson
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For the benefit of everyone here would mind telling us what ARB told you when you spoke to them?

Quote:
Originally Posted by mrossi
Found half of my problem. When installing the springs, I was misinformed by RoversNorth about "A" vs"B" springs. I had both "A"s on the Drivers side. I spoke to ARB - they explained that I have to swap the rears.
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  #13  
Old March 22nd, 2011, 03:38 AM
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Tony Sims
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I don't get why OME "sides" their springs. Most aftermarket spring makers don't. It's goofy enough that LR does it. When I ordered my springs for the RRC I specified matched, not sided.
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  #14  
Old March 22nd, 2011, 10:55 PM
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Mike Rossi
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In speaking to a technical engineer at ARB, he explained that that "A" springs (the taller one's) get mounted on the Left-Front and right-rear. The"B"s (shorter ones) get mounted on the Right-front and Left-Rear. This is how Land Rover does it at the factory as well. They clan the design is based on the fact that this supports a "typical" load under normal circumstances better than if all springs were the same height. Either way, that's how the springs are designed. ARB also explained that the suspension is designed to have a slight "rake" built in. Under full capacity load the truck will obviously level out. If the HD springs are installed, they should not sit any lower than the SD springs simply because they just won't compress at the same rate.

Hope that might help someone out there who runs into the same issues...
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  #15  
Old March 26th, 2011, 10:52 AM
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Chris
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My OME problem seems to be the opposite of what some of you are seeing. Looks like my drivers side front sits a bit lower than the passengers... I guess I need to check to see if they were installed on the correct sides.
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  #16  
Old January 14th, 2012, 08:37 AM
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I was wondering if anyone has any pics of this mod?
i'd like to try and level out my 110 double cab, which sits a noticeably higher in the back.


Quote:
Originally Posted by TS888 View Post
Shim the front. Once you have the truck all set up, measure the amount you want to raise the front and cut some aluminum spacers to put under the spring plates. Add longer bolts and Presto! Levelness.
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  #17  
Old January 14th, 2012, 08:54 AM
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The Tdi is a completely different beast. The only way I have been able to level mine correctly is with a 3" progressive on the front and a 2" hd on the rear. The last time I used the adjustable shock towers on the front so that I could match the droop front to rear. The truck sits completely level front to rear, Tool box in the rear and winch and bumper at the front.
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  #18  
Old January 14th, 2012, 12:33 PM
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Is it just the weight of the tdi?
The hd in back would obviously be higher than medium, right.
I kinda liked the simple spacer under the front spring perch.
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  #19  
Old January 14th, 2012, 12:49 PM
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Neil McCauley
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I remember when I first installed springs in my D90, I put them on wrong and put the rears in the front and the front in the rears. The front was like 3 inches higher than the back. Then when I finally put them in right a week later, it sat correctly and was a little higher in the rear like it was suppost to. But then as the years went by it started to sag a big especially after I installed the amps/subwoofer or when a passenger was in there so a month ago I installed in OME HD springs. Now its normal again. The only time I had a problem with leaning was on my 110 a few years ago. PS and DS are suppost to be swapped if its a left hand drive. Course nobody at BP bothered to tell me this until after I put them on and was wonder why the hell it was leaning to one side.
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  #20  
Old January 14th, 2012, 06:00 PM
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What about using something like this?
Just 1" on the front


http://bputah.com/Disco%20Parts/Land...ng_Spacer.html
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