Anyone else break their transfer case?

[rkcrawl]

Originally Posted by HummBebe

Would Dana 60's be a viable replacement in the H3??? Is it possible? I would like to change to 4:88's as I have 35" tires.

Would West Coat Differential be the people to talk to???

http://www.differentials.com/

The problem with a D60 on the H3 is the front... The front is IFS so a D60 from someone like WCD would probably want to be a full straight axle swap... not sure it you would want to get into something like that. As far swapping in a different IFS diff... That might be very challenging. Doesn't look like a lot of space where the current case is located.

The easy swap (but I guess gears are the issue?) would be the cast iron AAM case which would be a bolt in replacement. Other possible solutions might be the front case from an current GM 3/4 ton IFS 4x4 or maybe a H2 front case? Again space and mounting would probably be the first issues, then connection the outer axle shafts, etc...

I've seen custom 9" housing made, and if the center section fit under the front of the H3 I am sure it could be made to work with the stock IFS. In fact I know of a guy who did just that with a Toyota front IFS. With a nodular case and billet steel bearing caps you would end up with a "nearly" bullet proof front diff (though your probably start stressing the front half shafts ) and lots of options for a front locker too

As much as it would be a pain, for now, I'd let the dealer fix it under warranty before I spent ALOT of money on a customer solution. 1) Maybe GM will own up to fixing it right or 2) You end up doing something else once the warrantly is up and you've had time to really investigate solutions.

I'll be on the trails with mine soon and if I run into the same kind of issue, I'll be looking into solutions as well.

[HummBebe]

Originally Posted by Alec W

Theoretically could this happen in a mall if you gunned it on sticky pavement?

LMFAO!!!

I'm sure that's how Sewie busted his.

[Sewie]

Originally Posted by HummBebe

LMFAO!!!

I'm sure that's how Sewie busted his.

How would you know, you were out shopping at the time.

[Hummie2]

Yes, AAM makes the identical axle in cast iron

f5fstop... do you happen to know what application the cast iron version is used in? Year, make, model would be nice to know if possible.

[f5fstop]

Originally Posted by Hummie2

Yes, AAM makes the identical axle in cast iron

f5fstop... do you happen to know what application the cast iron version is used in? Year, make, model would be nice to know if possible.

Not sure without doing a parts check, and not even sure if GM uses the cast iron version. If they do, it would be in a half-ton pickup. The Colorado/Canyon uses different axles.

[4Skin]

Does the H3 share the same tranny as the Liberty? That's bad news.

[HummBebe]

Ok, been researching, the Range Rover and Nissan 4x4 are having a similar issues. Aluminum Cases....go figure.

The only front axels I can find so far are GM 8.25 IFS and 9.25 IFS.

The only reason I am on this , is I already have 27K miles. By the time GM gets around to finding a fix, my warranty will be out.

That does not make me happy. I still have not been reimbursed from my dealer from the April failure.

Besides, I don't do "waiting" well

[rkcrawl]

Originally Posted by HummBebe

Ok, been researching, the Range Rover and Nissan 4x4 are having a similar issues. Aluminum Cases....go figure.

The only front axels I can find so far are GM 8.25 IFS and 9.25 IFS.

The only reason I am on this , is I already have 27K miles. By the time GM gets around to finding a fix, my warranty will be out.

That does not make me happy. I still have not been reimbursed from my dealer from the April failure.

Besides, I don't do "waiting" well

Is your H3 a daily driver or your toy? If a toy, WTH, why not consider a straight axle swap and get rid of the IFS altogether in the front? Someone has to be first. Though the can of worms that would open is pretty big.

Did they replace your case last time or just install a new R&P?

[f5fstop]

Originally Posted by HummBebe

Ok, been researching, the Range Rover and Nissan 4x4 are having a similar issues. Aluminum Cases....go figure.

The only front axels I can find so far are GM 8.25 IFS and 9.25 IFS.

The only reason I am on this , is I already have 27K miles. By the time GM gets around to finding a fix, my warranty will be out.

That does not make me happy. I still have not been reimbursed from my dealer from the April failure.

Besides, I don't do "waiting" well

I'm assuming you got pre-authorization from the dealer or Hummer before the repairs were performed in Moab? If so, who gave the authorization the dealer or Hummer assistance? Let me know, I might (and I say only might) be able to call someone; especially if the ok for the repair came from the assistance center.

As for the front diff; AAM makes a cast iron 760 axle, that is supposed to be identical to the aluminum axle currently being used on the H3.


I believe somone asked about the manual trans, the H3 uses the Aisen AR5, and this could well be the same trans used on many other vehicles.

[rkcrawl]

Originally Posted by 4Skin

Does the H3 share the same tranny as the Liberty? That's bad news.

Thats doubtful. The H3 has a GM 4L60E transmission.

edit: Whoops, I don't know about the manual transmission... They could be the same.