G80 not available with vehicles with optional StabiliTrak

[Doubeleive]

this must be the video tom was talking about skip to about 7 minutes for comparison test's
there are others more modern

 

[Doubeleive]

 

[Doubeleive]

 

[Marky Dissod]

Yes, still the G80 made by Eaton.

The one Eaton sells to GM for about $15 each? Gotta admit it's pretty clever; pendulums and pawls.
What's really cool about it, is that both of its features are independently adjustable.

What makes it liable to explode is that it'll let morons spin one wheel pretty fast before it locks.
There's a spring that determines how much wheelspin to tolerate before locking.
If you wind it tighter, it allows MORE wheelspin before locking itself - bad idea.

UNwind it just enough, and it will stay unlocked in turns, but it will also respond to wheelspin by locking up sooner than GM / Eaton calibrated it to.
The secondary benefit: by catching the loose wheel sooner, it becomes LESS likely to bomb.

 

[strutaeng]

The one Eaton sells to GM for about $15 each? Gotta admit it's pretty clever; pendulums and pawls.
What's really cool about it, is that both of its features are independently adjustable.

What makes it liable to explode is that it'll let morons spin one wheel pretty fast before it locks.
There's a spring that determines how much wheelspin to tolerate before locking.
If you wind it tighter, it allows MORE wheelspin before locking itself - bad idea.

UNwind it just enough, and it will stay unlocked in turns, but it will also respond to wheelspin by locking up sooner than GM / Eaton calibrated it to.
The secondary benefit: by catching the loose wheel sooner, it becomes LESS likely to bomb.

Yes, that's the one! LoL

Where do you a $15 price?

It works well. The problem is folks putting on huge tires and/or abusing them.

Keep in mind the G80 is made in 8.5/8.626, 9.5, 10.5 (11" and I don't know what the newest HD trucks run now, I think a 12" monster ring gear diff). Usually it's smallest G80s that suffer from catastrophic failures.

BTW, I couldn't find that 1970s video I mentioned. :-(

 

[Marky Dissod]

Eaton & GM have (or had until very recently) an agreement.
Eaton sells GM what we call Gov-Locks for $15 a piece (no I can't actually prove it).

Yes, part of the problem is abuse, and larger-than-OE tires can make things worse.
If you UNwind the spring that governs the opening of the locking pendulum,
that will make it less likely to explode.

 

[project_x]

I was scrolling through a 2003 Suburban trim option flyer and saw this note on the footnote. I didn't know this. I guess it makes sense because those systems kinda work opposite each other.

Does this mean that all 4x4 suburbans with StabiliTrak have open differentials? I guess, if that note is true, at least for the 2003 models?

Did this change in later years, and maybe later generations? StabiliTrak can be turned off, I believe?

I'm just curious. All my 3 GMT800 trucks have the G80, and 2 are 2wd. None have StabiliTrak though.

Our '20 passenger van does have StabiliTrak and also an open differential. Obviously, different vehicles and a large gap of years there.

https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://www.motorologist.com/wp-content/uploads/2003-Chevrolet-Suburban-brochure.pdf&ved=2ahUKEwjz4dHIpZyEAxXhkGoFHUGXCKQ4ChAWegQIBRAB&usg=AOvVaw2yjNX5uOG5hDuje74jF4gQ

I have both G80 and JL4 ( which I think is stabilitrak) RPOs on my 2005 Suburban LT 4x4.

 

[Marky Dissod]

I have both G80 and JL4 ( which I think is stabilitrak) RPOs on my 2005 Suburban LT 4x4.

RPO Codes Decoder - GM Chevrolet Buick Cadillac - Regular Production Option

RPO Codes Decoder - Find out what options your GM Chevy Buick Cadillac vehicle is equipped with - GM Chevrolet Buick Cadillac - Regular Production Option

decoderpo.com

JL4: StabiliTrak CONTROL ACTIVE BRAKE
Just curious: does your '05 'bubba (also) have
FX3: StabiliTrak, stability control system
?

 

[project_x]

I do not have FX3 and don't know the difference... I have a traction control button on my dash...

RPO Codes Decoder - GM Chevrolet Buick Cadillac - Regular Production Option

RPO Codes Decoder - Find out what options your GM Chevy Buick Cadillac vehicle is equipped with - GM Chevrolet Buick Cadillac - Regular Production Option

decoderpo.com

JL4: StabiliTrak CONTROL ACTIVE BRAKE
Just curious: does your '05 'bubba (also) have
FX3: StabiliTrak, stability control system
?

 

[Justinj360]

I just discovered the other night that it's the same case on my 2004 as well. I was out off-roading and couldn't get my "locker" to lock up so that night I was doing some research and after seeing how easy it was for other people to get theirs to engage in videos I started contemplating if I actually had one. I checked the build sheet and was super disappointed when I saw that note about Stabilitrak. Originally, I had only seen the "locking rear differential" part in the first column, so for years I've been thinking I actually had a G80 when I don't. After I saw that note I checked the RPO codes and sadly there's no G80 code...
I read somewhere that it was only like this for 2003 and 2004, then in 2005 you could get both Stabilitrak and the G80. Anyone know why you couldn't have both for a couple years? I'm wondering if it's possible to install one and still have everything work properly. Also, mine is AWD, not 4WD, which seems to be pretty uncommon for a base model and makes things a bit more complicated in the powertrain.
Also, what does the note mean by it also replaces traction assist? I definitely have traction control, I've seen the "traction active" message come up on the dash several times before.