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Go Back   Hummer Forums by Elcova > Hummer H2 Discussion Forums > Technical Discussion and Customizing your H2

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  #1  
Old 05-22-2004, 05:32 AM
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Anyone know what the tolerance or acceptable measurement is from ground to the fender arch line (F&R)? I had a Land Rover Discovery with air suspension and the rear "squatted" a bit compared to the front. The dealer said it was normal. My Honda Odyssey minivan squats also. I'm seeing the same thing on my H2 (see pic). Is this the case with all H2's with air suspensions? I hate the look of a squatting truck but I don't want to raise the rear every time drive. The picture below is before I installed the 3rd row bench. The squat is the same. I am worried, however, that once I get the spare tire mounted in the rear the squat is going to be worse.
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  #2  
Old 05-22-2004, 05:32 AM
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Anyone know what the tolerance or acceptable measurement is from ground to the fender arch line (F&R)? I had a Land Rover Discovery with air suspension and the rear "squatted" a bit compared to the front. The dealer said it was normal. My Honda Odyssey minivan squats also. I'm seeing the same thing on my H2 (see pic). Is this the case with all H2's with air suspensions? I hate the look of a squatting truck but I don't want to raise the rear every time drive. The picture below is before I installed the 3rd row bench. The squat is the same. I am worried, however, that once I get the spare tire mounted in the rear the squat is going to be worse.
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  #3  
Old 06-07-2004, 03:21 AM
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<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR> Where is it and how is it done? <HR></BLOCKQUOTE>

See this past thread http://elcova.com/groupee/forums?q=Y&a=tpc&s=2826088551&f=6706011751&m=71910 7543&p=1 . Paragon posted some good pics that show the torsion adjuster bolts.

<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR> Where is it and how is it done? <HR></BLOCKQUOTE>

In your case back the bolts out until you obtain the front ride height ("Z" Height) you want. Approx. 42" from ground to lower edge of wheel opening with stock tires @ recomended inflation should be close to correct "Z" height. BE SURE TO HAVE FRONT END ALIGNED after adjusting the bolts, you will change the alignment some. If you have less than 7500 miles dealer should give 1 free alignment under warranty.

<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR> Will I void the warranty <HR></BLOCKQUOTE>

No. Dealer should have checked this when they did the rear ride height ("D" Height) repair anyway.

<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR> or confuse the air suspension control box <HR></BLOCKQUOTE>

If the rear air suspension is working properly it should level it's self.
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  #4  
Old 05-27-2004, 09:12 PM
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The new unit they installed failed. Due to the long weekend they can't get another one in until next Tuesday. John at Hummer of Bellevue is a great guy. I hate the wait but at least they are addressing the issue. My Land Rover spent literally 2/3 of its life at the shop so I'm used to it...I guess. Also, I had them check the brakes and they told me that generally the H2 brakes last about 50K miles! Wow, is that true?
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  #5  
Old 05-22-2004, 05:49 PM
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From setting over night mine was 8.25 back and 8.75 front both sides.Air ride.
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  #6  
Old 06-06-2004, 04:28 AM
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Got it back after a week in the shop. They replaced the main control unit and rear air shocks as well. The distance between the top of the wheel and the fender in the rear is higher now at 8.75 inches. The FL is 9.25 and the FR is 9.50. Damn! Does anyone know if the balance can be manipulated? I just want it to be equal all around. After a week I thought they'd have it fixed.
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  #7  
Old 05-22-2004, 10:48 AM
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Have the dealer adjust the level, if u want to do it, I'll have to look at the wife's and see what needs to be moved.
Someone on here has done it before.
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  #8  
Old 06-07-2004, 04:31 AM
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Sorry but my last post was premature. After a few days the air suspension must have leveled itself out. Both rears measure 9.25" and the front comes in at 9.00" just the way I wanted it. There still is the question as to why the dealership released the car when the measurements were off. Perhaps they knew that it took a few days for the air suspension to work itself to a "standard" tolerance?
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  #9  
Old 05-22-2004, 11:11 AM
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I have the air ride in my H2 and it is higher in the back.
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  #10  
Old 05-22-2004, 03:48 PM
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I just measured the distance between the top of the tires to the fender. In the rear its 8.25 inches and the front is 9.25 inches. Is that different for you?
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  #11  
Old 05-27-2004, 12:38 AM
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The dealer diagnosed the issue and they are replacing some computer that controls the suspension balance of the truck (I'm sure there is a technical term for this). Apparently the front of the truck is too high. Can't wait to get rid of the "squat" look. Interesting enough, I looked at other pics of H2's on Ebay and this forum and discovered that other H2's have a squatting look as well. TSB???
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  #12  
Old 05-27-2004, 07:00 PM
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Here is what I have:

frt: 8"
rr: 7 7/8"
Then measured at the roof, above the tracks next to marker lights:
frt: 75" (w/in 1/4")
rr: 77" "

The rack then would be coming from the body design, not suspension.
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  #13  
Old 05-22-2004, 10:39 AM
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Something sound funny. The H2, along with most of GM's truck line, has a rake to it. The rear should be higher than the front. If yours is not something is amiss. Adding the extra weight should not change that rake as the rear is self leveling.
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Old 06-06-2004, 09:28 PM
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The brake comment, I have over 60,XXX on mine and still have the factory brakes and I drive hard.
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  #15  
Old 05-22-2004, 05:32 AM
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Anyone know what the tolerance or acceptable measurement is from ground to the fender arch line (F&R)? I had a Land Rover Discovery with air suspension and the rear "squatted" a bit compared to the front. The dealer said it was normal. My Honda Odyssey minivan squats also. I'm seeing the same thing on my H2 (see pic). Is this the case with all H2's with air suspensions? I hate the look of a squatting truck but I don't want to raise the rear every time drive. The picture below is before I installed the 3rd row bench. The squat is the same. I am worried, however, that once I get the spare tire mounted in the rear the squat is going to be worse.
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  #16  
Old 06-07-2004, 01:25 AM
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Hummie2,

Thanks for the reply! Where is it and how is it done? Will I void the warranty or confuse the air suspension control box if I mess with this? If what you're saying works. I'd like to lowr the front left as well so that all four corners are equal.
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  #17  
Old 06-07-2004, 12:11 AM
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<BLOCKQUOTE class="ip-ubbcode-quote"><font size="-1">quote:</font><HR>Originally posted by kacyk:
Got it back after a week in the shop. They replaced the main control unit and rear air shocks as well. The distance between the top of the wheel and the fender in the rear is higher now at 8.75 inches. The FL is 9.25 and the FR is 9.50. Damn! Does anyone know if the balance can be manipulated? I just want it to be equal all around. After a week I thought they'd have it fixed. <HR></BLOCKQUOTE>

Adjust your right front torsion adjuster down about 1 turn, drive for a day then remeasure and go from there.
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Old 05-23-2004, 01:06 AM
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I had the same measurements as It's A Dry heat.
Mine has been updated by the stealership too. my compressor ran all of the time, but this is how it sits.
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Old 03-08-2005, 09:54 PM
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sorry, that worked out well?
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Old 03-09-2005, 12:46 AM
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While we're talking about suspension, anyone else hear a creaking noise when they step on the side step getting into their truck? Before you get too far, I weigh 190.
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