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Whats the difference between a hummer h2 and a 1500 avy?

casper24

casper24

Full Member
Joined
Jun 10, 2007
Messages
90
Location
Norwalk Ca
I hear different things about this,I hear the avy has a saburban frame,then I hear the hummer has the same,is this true?what are the differences between a hummer h2 and an 1500avy,and where does the saburban fit in?Motor,tranny,susp,etc,,just wondering,thank you:)
 
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Edited by moderator to adjust pic width to conform to page.
 
H2 is tahoe frame
 
I believe the H2 is built along the lines of a 3/4 ton vehicle.  8 lug wheels and probably a heavier suspension.
 
Yes it's a 3/4 ton truck
 
The Hummer H2 shares the framerails from GM's GMT700 platform but the upcoming 2008 H2 will make the transition to the GMT900 platform.  This is the same platform as the new Silverados, Sierras, Yukons, Suburbans, etc.  This is where the similarities end in regards to the vehicle's chassis.  The H2 utilizes a braking system that is capable of detecting different driving surfaces, such as a washboard surface on a gravel road, and braking accordingly.  The H2 also utilizes Dynamic Rear Proportioning which modulates rear brake pressure to keep the nose from diving under braking.  I do not know if the 2008 Avalanche incorporates DRP.  The H2 has rocker panel protectors bolted directly to the frame.  GM claims that if the vehicle takes an impact to these protectors that every 4" span is capable of taking the entire weight of the vehicle.  While not available from the factory, similar solutions are available for the Avalanche through aftermarket suppliers.  Other differences include clearance of 9.7" on the H2, 20" water fording capability, the ability to climb a 60% grade even if only one wheel has traction, as well as traversing a 40% side slope, and the ability to scale 16" obstacles.  The 2008 Avalanche is now available with the same 6.0L engine as the H2, but the upcoming 2008 H2 will replace that engine with the 6.2L.  I suspect that all other vehicles on the GMT900 architecture that currently use the 6.0L will also be upgraded to the 6.2L.  The H2 utilizes a Borg-Warner 2-speed transfer case that provides full-time 4WD.  This is coupled with an Eaton E-Locker in the rear, allowing you to fully lock up the rear of the vehicle if you require additional traction.  Traction control helps prevent wheel slip in both vehicles, though the H2 offers a modified traction control program that allows the vehicle to "paddle" through sand, snow, mud, etc.  Air suspension is available in both vehicles though the H2 allows you to lift the rear of the vehicle further, providing further ground clearance.  The H2 currently employs the 4L65E 4-speed transmission which is similar to the 4-speed transmission in the Avalanche.  The 2008 H2 will replace this with a 6-speed transmission with 2 gears specifically allotted for offroad use, but I believe that the Avalanche will be receiving a similar transmission soon, albeit without the offroad-specific gearing.  The Avalanche sees a modest improvement in fuel economy over the H2, due in part to its aerodynamic advantages and fewer moving parts, one of the advantages of a 2WD/4WD selectable system.  Both vehicles share similar options, including sunroofs and navigation systems.  The 2008 Avalanche offers stability control and rollover mitigation, something that is being added to the 2008 H2.  Depending on how much one wants to take the vehicle offroad and under what conditions, the approach angle, departure angle, and breakover angle of the H2 might be something to seriously consider.  The only other difference is where the vehicles are manufactured.  The Avalanche is built in Mexico, whereas the H2 is built in the U.S. by AM General.

I think that both vehicles have strong advantages, and it all comes down to what you intend to use the vehicle for.  I am speaking in regards to "as-is" from the factory, of course.  I have seen many Avalanches turned into incredible offroad vehicles, but have also seen H2s turned into "palaces on wheels."  Rumour has it that the H2 will be available with a diesel powerplant within two years, but I see this happening with the Avalanche too, once GM finalizes their new diesel engine.

I think that covers the basics of both vehicles.  I'm a bit rusty on my Avalanche knowledge, but I try to keep on top of things.  I'm more current with H2 details, mainly because I just had most of my drivetrain replaced under warranty.

If you want to know more, just ask!
 
wow,ok what can I say,thank you guys for your help,I appreciate it:) so they are not very similar,I take it? ?Oh and by the way,what the heck does the pickle and fire ext mean,dare I ask?:)
 
That's how close a H2 and AVY are, what ever you're thinking about is going to take a lot of work. Not similar at all
 
casper24 said:
wow,ok what can I say,thank you guys for your help,I appreciate it:) so they are not very similar,I take it? ?Oh and by the way,what the heck does the pickle and fire ext mean,dare I ask?:)
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its like trying to compare the two.  they just aint the same.
 
oh no I am not thinking anything,I like the h2 BUT I LOVE MY AVY,lol its just something I wondered:)you hear stories,ya know?and if I get into it with someone,I kinda like to know what I am talking about,lol.
 
casper24 said:
oh no I am not thinking anything,I like the h2 BUT I LOVE MY AVY,lol its just something I wondered:)you hear stories,ya know?and if I get into it with someone,I kinda like to know what I am talking about,lol.
Click to expand...
The main structural similarity between the Avalanche and the H2 SUT is the midgate.  The H2 SUT's midgate has a power window, but that is the only real difference.  I really miss my Avalanche, but hope to get into another one soon.
 
Aside from what Bor-Ral said, you'll noticed that H2 is taller and at least appears to be wider than the AV. It is also a bit shorter lengthwise. I've parked next to one a few times and noticed the difference. 
 
ROOM!!!!

When I traded in the H3 I went looking at the H2 SUT and the H2 Wagon and the AV.
Before the H3 I had a full size Dodge and missed the room, but I had bought the 3 for a specific reason and once that was over I wanted more room and power again. After looking at all of them I came up with and kept going back to the AV.
I am stoked with the Av and havn't had any problems so far with it, unlike the 3 that was always in for service.
$ for $ the AV is the best choice...
 
sk8deck said:
ROOM!!!!
Click to expand...

That's for sure. At one point I thought I might be interested in an H2, until I compared the useable interior space between the two.
 
The H2 is based on the shorter Tahoe frame, but then with several 3/4-ton HD Suburban drivetrain and suspension parts, aside from the unique rear axle retaining coils.

So...think of it as one beefed up Tahoe, and you're pretty much dead on.
 
h2 is a tahoe frame hense the shorter bed, the av is the suburban frame hense the longer bed. . . not sure where the suburban mechanical fits in
 
Boar-Ral said:
The Hummer H2 shares the framerails from GM's GMT700 platform but the upcoming 2008 H2 will make the transition to the GMT900 platform.? This is the same platform as the new Silverados, Sierras, Yukons, Suburbans, etc.? This is where the similarities end in regards to the vehicle's chassis.? The H2 utilizes a braking system that is capable of detecting different driving surfaces, such as a washboard surface on a gravel road, and braking accordingly.? The H2 also utilizes Dynamic Rear Proportioning which modulates rear brake pressure to keep the nose from diving under braking.? I do not know if the 2008 Avalanche incorporates DRP.? The H2 has rocker panel protectors bolted directly to the frame.? GM claims that if the vehicle takes an impact to these protectors that every 4" span is capable of taking the entire weight of the vehicle.? While not available from the factory, similar solutions are available for the Avalanche through aftermarket suppliers.? Other differences include clearance of 9.7" on the H2, 20" water fording capability, the ability to climb a 60% grade even if only one wheel has traction, as well as traversing a 40% side slope, and the ability to scale 16" obstacles.? The 2008 Avalanche is now available with the same 6.0L engine as the H2, but the upcoming 2008 H2 will replace that engine with the 6.2L.? I suspect that all other vehicles on the GMT900 architecture that currently use the 6.0L will also be upgraded to the 6.2L.? The H2 utilizes a Borg-Warner 2-speed transfer case that provides full-time 4WD.? This is coupled with an Eaton E-Locker in the rear, allowing you to fully lock up the rear of the vehicle if you require additional traction.? Traction control helps prevent wheel slip in both vehicles, though the H2 offers a modified traction control program that allows the vehicle to "paddle" through sand, snow, mud, etc.? Air suspension is available in both vehicles though the H2 allows you to lift the rear of the vehicle further, providing further ground clearance.? The H2 currently employs the 4L65E 4-speed transmission which is similar to the 4-speed transmission in the Avalanche.? The 2008 H2 will replace this with a 6-speed transmission with 2 gears specifically allotted for offroad use, but I believe that the Avalanche will be receiving a similar transmission soon, albeit without the offroad-specific gearing.? The Avalanche sees a modest improvement in fuel economy over the H2, due in part to its aerodynamic advantages and fewer moving parts, one of the advantages of a 2WD/4WD selectable system.? Both vehicles share similar options, including sunroofs and navigation systems.? The 2008 Avalanche offers stability control and rollover mitigation, something that is being added to the 2008 H2.? Depending on how much one wants to take the vehicle offroad and under what conditions, the approach angle, departure angle, and breakover angle of the H2 might be something to seriously consider.? The only other difference is where the vehicles are manufactured.? The Avalanche is built in Mexico, whereas the H2 is built in the U.S. by AM General.

I think that both vehicles have strong advantages, and it all comes down to what you intend to use the vehicle for.? I am speaking in regards to "as-is" from the factory, of course.? I have seen many Avalanches turned into incredible offroad vehicles, but have also seen H2s turned into "palaces on wheels."? Rumour has it that the H2 will be available with a diesel powerplant within two years, but I see this happening with the Avalanche too, once GM finalizes their new diesel engine.

I think that covers the basics of both vehicles.? I'm a bit rusty on my Avalanche knowledge, but I try to keep on top of things.? I'm more current with H2 details, mainly because I just had most of my drivetrain replaced under warranty.

If you want to know more, just ask!
Click to expand...
:eek: :eek: :eek: :eek:
Sums it up for me! (y)
 
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