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'03 GMC 2500HD 4x4 leveling kit??

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Old 09-15-2003, 09:20 PM
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Default '03 GMC 2500HD 4x4 leveling kit??

I just got a new duramax and I don't really care for the stance. I'd like to lift the front end of the truck up a couple inches to level it out. I did a quick google search and didn't net any results. Any thoughts?

I'm also going to pick up a programmer for it, I'm leaning towards a Diablo mainly because I can get one for cost.. Thoughts on programmer/chips??

Old 09-16-2003, 07:46 AM
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Default Re: '03 GMC 2500HD 4x4 leveling kit??

Did you crank up the torsion bars yet? If that doesn't give you enough... I used Ford Keys on mine, but I've only got a 1500... don't know if they work on the HDs.
Old 09-16-2003, 08:22 AM
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Default Re: '03 GMC 2500HD 4x4 leveling kit??

Yes crank up your bars. The Green T-bar keys from GM will do the same thing as the Ford keys also. Those are the only thing you can do to level your truck. Your ride will get a bit firmer, but its not bad.
Old 09-19-2003, 07:20 AM
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Default Re: '03 GMC 2500HD 4x4 leveling kit??

I have 285/75/16's on 16x8 wheels on my 2500HD. I installed the "green keys" for 2" lift in the front to level things out and clearance. You can crank your stock T-bars max about 7-8 turns and get 1-1/2" of lift but the ride is very harsh. Easy to try before swapping keys, just take a couple measurements before so you can return it to stock if needed.

The "green keys" are actually keys from a 1500 series truck and are indexed a little more allowing more lift to be achieved. One difference though is that the ride does not suffer nearly as bad as just cranking the stock keys. Similar to about 3-4 turns of the stock keys! They are very easy to install (30-45 min) and will run you about $50 at the dealership.

2500HD's take the keys from a 1500 (green keys)
1500's use the keys from a 2000 Ford F-150
Old 09-19-2003, 07:42 AM
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Default Re: '03 GMC 2500HD 4x4 leveling kit??

Edge Hot Juice is the only way to go IMO.They are pricey but perform the best of all the programmers.If you do a search in the truck area you will find dyno graphs showing 750+ tq to the ground.
Old 09-19-2003, 01:12 PM
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Default Re: '03 GMC 2500HD 4x4 leveling kit??

when you crank up the keys do you have to re align or ajust caster camber?

I have a stock 2003 GMC 4x4 ext
Old 09-19-2003, 03:00 PM
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Default Re: '03 GMC 2500HD 4x4 leveling kit??

Absolutly!

A couple hundred miles won't hurt anything but get it aligned if you intend on leaving it cranked up anything over 3/4" - 1" or so. A good alignment is a lot cheaper than new tires!
Old 09-19-2003, 11:50 PM
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Default Re: '03 GMC 2500HD 4x4 leveling kit??

Try hooking a trailor to the back of it
Old 09-20-2003, 02:02 PM
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Default Re: '03 GMC 2500HD 4x4 leveling kit??

Thanks Guys I got the green keys from gmpartsdirect.com for $45 shipped. I'm taking it for some new 285/75/16 tires now. I'll post another pic this evening.

I'll dig into the performance chips tonight at work.
Old 09-20-2003, 03:15 PM
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Default Re: '03 GMC 2500HD 4x4 leveling kit??

Nice! I can't wait to get my DMax in the spring.

I like the Duramaximizer and Tech IV programmer, that is what I will be going with.


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