Hummer H3 For the Hummer driver who wants the rugged look and off road capabilities of the Hummer, but in a smaller size and with a more fuel economy friendly engine.

Torsion bar info

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Old Sep 5, 2018 | 06:05 AM
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Ceazye6's Avatar
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Default Torsion bar info

Ok I’ve seen where people say not to go up over 23.5 inches from center of hub to fender, just curious as to why?? Putting cv joints at a weird angle? I put a 2.5 inch leveling kit on my h3, which includes spacers for the torsion bolts and extended shackles. I also installed new, longer shocks. After doing all that and leveling it back out, it came out to 24.5 inches, and I’m getting a small vibration when taking off at low speeds, turning a corner at low speeds, and going over a hill when the shocks extend out. Is that caused by the front being too high? Any help is appreciated
 
Old Sep 5, 2018 | 08:24 AM
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The short answer. Many of us here have been modding H3s for over a decade, and we are trying to help others learn from previous mistakes.

Those piece O chit leveling kits are a waste of $, the instruction in many of those kits said they allow up to 24.5". That came from people who made the kits, and never drove an H3 for 1000s of miles after installation. After many, many, many people trying that, virtually every one of them tore up stuff in the front drive train, like tie rod ends, half shafts,front diffs., OEM shocks, etc... not to mention they started steering like a horse drawn cart and bouncing all over in their highway lane.

With or without a leveling kit, the max front lift w/ stock A Arms is 23.5-23.6". Any more than that, get ready to work on replacing parts and ride like in a clown car. We have been there and done that, take it for whatever you want, but your current problems will get magnified over miles driven.

Welcome and good luck.
 
Old Sep 5, 2018 | 08:26 AM
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I appreciate all the info I can get, as I am brand new to the hummer world. So that would explain my vibration then basically? Honestly other than the vibration it drives pretty good
 
Old Sep 5, 2018 | 10:13 AM
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X2 on EVERYTHING Doc said
 
Old Sep 5, 2018 | 06:18 PM
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You didn't specify but I'm assuming you got an alignment afterwards?
 
Old Sep 5, 2018 | 06:19 PM
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Yes I got an alignment, still have the slight vibration
 
Old Sep 6, 2018 | 08:39 AM
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That slight vibration is coming from the CV joints in the Half Shafts. Imagine what that does long term to your front suspension and diff bearings/seals. Starts small, and grows over time, until stuff breaks down.
 
Old Sep 6, 2018 | 08:54 AM
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I took the extended shackles off, put the stock ones back on, and lowered the front to where it should be and that took care of it. Thanks for the help!
 
Old Sep 6, 2018 | 01:24 PM
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Originally Posted by Ceazye6
I took the extended shackles off, put the stock ones back on, and lowered the front to where it should be and that took care of it. Thanks for the help!
Now if you want it leveled (or close to it). you can do what most of us have done and adjust the torsion bar keys to get to that 23-1/2" measurement and still have that good ride.
 
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