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Go Back   Hummer Forums by Elcova > Hummer H2 Discussion Forums > General H2 Discussion

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  #1  
Old 08-10-2011, 02:55 PM
Scooter911 Scooter911 is offline
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Default 37x12.5x17 on stock rims

I know this has been asked, but the answers always left some doubt as to the setup so I'd like to get this clarified before I buy.

I have a 2003 H2 with original rims.

I'd like to install 37x12.5x17 BFG MT's.

Because I have to special order these tires in (PRE-paid), and then bring my rims in separately because no one is willing to install them on my truck due to perceived liability, I'd really like to make sure that I'm making an informed purchase.

I have the original 17" rims and no lift kit, etc... Will 37's fit on my truck? I've read some posts that stated some extra 'work' was required to get larger tires to fit.

Any input would be greatly appriciated.

My biggest fear would be to get these tires in and then discover that they don't fit.

My current plan was to purchase 1 tire and install it on my spare rim to test for fit. Worst case is that I would be stuck with only 1 tire if it didn't fit.

Kelly

Kelly
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Old 08-10-2011, 03:47 PM
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SmokeyJoe SmokeyJoe is offline
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Default Re: 37x12.5x17 on stock rims

37's should fit just fine if you crank the keys a bit.
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Old 08-10-2011, 03:52 PM
Scooter911 Scooter911 is offline
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Default Re: 37x12.5x17 on stock rims

Thanks for the quick response!

Can you describe what 'crank the keys' means?

Kelly
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Old 08-10-2011, 04:10 PM
Scooter911 Scooter911 is offline
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Default Re: 37x12.5x17 on stock rims

Doing some research now... Seems fairly simple to adjust the torsion bars.

Kelly
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Old 08-10-2011, 10:46 PM
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Default Re: 37x12.5x17 on stock rims

Stock keys adjust about an extra 0.5" to 1", depending on how they were set up from the factory. You could always get aftermarket keys if you want to go a bit higher. To adjust the keys, unload the front suspension and turn the bolts holding the keys up (about in the center of the car, where the torsion bars end). 37's should clear with minor rubbing on the frame and a-arms, but just very minor rubbing at full steering lock. Shouldn't cause much problems. There are also spacers available for the rear springs if you want to raise the back of the Hummer. If you want to mount the tires, bring them to a truck shop. That's where I had mine installed. They mainly do tires for big semi-trailers and other heavy machinery. They have big balancing machines and should be able to properly balance the tires. Good luck with your tires. Cheers, Indy.
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Old 08-11-2011, 01:11 AM
Scooter911 Scooter911 is offline
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Default Re: 37x12.5x17 on stock rims

Thanks. I feel much more confidant now after doing more research!

I'll place the order next week and then post the results.

Kelly
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