H3 Front diff crossmember bushing fix

gbrock1031 · Mar 1, 2012

I spoke to Dwaine and Luis today and I'm placing an order. They know what they are doing and are extremely helpful. I look forward to replacing my cross member with their fix next week! I'm confident it will be the last time I have to make that repair. Thank you Dwaine and Luis!

H32NV · Mar 1, 2012

alrock said:
I've had my CV boots covered under powertrain warranty . Agree that they won't cover the crossmember. (As for CVs, I'm talking both the propshaft (whole unit) and the halfshafts (boots only) as both have been replaced under warranty.

maybe Tyrell-Marxen in Flagstaff just sucks. I should go down there maybe. I def have a cracked boot.

alrock · Mar 1, 2012

Lund Cadillac helped my out. My service advisor is Steven Ansingh.

Steve #1 · Mar 2, 2012

H32NV said:
maybe Tyrell-Marxen in Flagstaff just sucks. I should go down there maybe. I def have a cracked boot.

Not sure what year model your 3 is but I think this one of the parts that is only covered under the powertrain warranty on '07s.

auggie mathis · Mar 2, 2012

any idea on a time frame till the parts are for sale?

alrock · Mar 2, 2012

Steve #1 said:
Not sure what year model your 3 is but I think this one of the parts that is only covered under the powertrain warranty on '07s.

I forgot that the powertrain coverage varied by years. You may be correct.

Bigunit · Mar 2, 2012

auggie mathis said:
any idea on a time frame till the parts are for sale?

Auggie, I would guess that they will be ready by the end of next week. I'll send you a pm this weekend with some additional information. Thank you.

supersapper-rpm · Mar 3, 2012

The dealer did this to my 2010 T with the newer style crossmember. The nut welded in the crossmember broke loose inside the crossmember.... so they drilled through it and bolted it in. Seems to work OK.

H3slate · Mar 5, 2012

supersapper-rpm said:
View attachment 3703 View attachment 3704The dealer did this to my 2010 T with the newer style crossmember. The nut welded in the crossmember broke loose inside the crossmember.... so they drilled through it and bolted it in. Seems to work OK.

:whaa: Soo... how do you get your skid plate off to change your oil without removing the crossmember bushing bolt??

supersapper-rpm · Mar 5, 2012

Umm...they unbolt the nut and bolt they added?, just has a nut on the top instead of welded inside the crossmember. If you see an issue with it let me know so i can go have em' re-fix it, my T is still under b2b waranty. I have had my oil changed since then and had no issues...also Im going to get an older stlye cross-member redone from Preferred Chassis Fabrication for when this one dies. :corn:

alrock · Mar 5, 2012

supersapper-rpm said:
View attachment 3703 View attachment 3704The dealer did this to my 2010 T with the newer style crossmember. The nut welded in the crossmember broke loose inside the crossmember.... so they drilled through it and bolted it in. Seems to work OK.

I had to do that too on crossmember #3 of 5

Bigunit · Mar 10, 2012

auggie mathis said:
any idea on a time frame till the parts are for sale?

Auggie, these are ready. Send me a pm with your phone number and shipping address & I'll give you a call with the details. You are going to get a "special member discount " for everything you have done for the members over the years and for being one of the first (other than Alrock & me) to give these a test.

Bigunit · Mar 10, 2012

gbrock1031 said:
I spoke to Dwaine and Luis today and I'm placing an order. They know what they are doing and are extremely helpful. I look forward to replacing my cross member with their fix next week! I'm confident it will be the last time I have to make that repair. Thank you Dwaine and Luis!

gbrock1031, yours is ready too. Left you a voice message yesterday. Give me a call when you get the message.

Bigunit · Mar 18, 2012

New H4O member GAATZBELL read about the Scorpworks bushing fix after an on-line search after finding out that his CM bushing was pretty much non-existant. He happens to be local (Air Force currently stationed here in Tucson). Welcome to the forum & thank you for your service!
:cheers:

He came acrooss the forum, registered and contacted me about picking one up. Yesterday, he came by Dwaine's shop to get a Scorpworks H3 bushing crossmember. The one in his '06 rig was in the worst I shape I had ever seen! We popped his out and replaced it with Dwaine's "fix". Here is a pic of the new red Scorpworks bushing pressed into the old style CM with the OEM keyed head.

Here are a couple pics after we installed it on Gary's rig.

Perfect fit, a happy customer and new wheeling partner! Let us know how it holds up by posting your periodic comments here on the forum.

ReconH3 · Mar 18, 2012

That's great to find people willing to help Hummer owners find solutions where GM never did. Thanks Dwayne!

"Ex Umbris Venimus"

Sent from my iPhone

ColoradoH3 · Mar 18, 2012

I'm interested in getting my bushing sorted out. Just curious as to pricing and where to order?

Bigunit · Mar 18, 2012

Will have pricing, ordering, contact info and other details up in the Preferred Chassis Fabrication room in the "Sponsors" section of the forum sometime tomorrow.

Hunner · Mar 18, 2012

Bigunit said:
Here is a pic of the new red Scorpworks bushing pressed into the old style CM with the OEM keyed head.

That first shot is the newer skinny end cm isn't it?

Bigunit · Mar 18, 2012

Hunner said:
Bigunit said:

Here is a pic of the new red Scorpworks bushing pressed into the old style CM with the OEM keyed head.

That first shot is the newer skinny end cm isn't it?

Click to expand...

Yes, the one above that is only half visible in the pic above is the new CM version.
This pic shows a little more of the newer version CM:

H32NV · Mar 20, 2012

Here's mine. Welded a straight section of square tubing into the cross member and drilled a 1-1/4" Hole sideways, welded a piece of 1-1/4 round tubing into that hole, ground everything flat, press-fit a polyurethane bushing, attached a U-bracket onto the diff and then sent a 5/8" bolt through the crossmember tube on the inside of the bushing. The old design that everyone has been using is basically a thrust bearing/bushing made out of rubber. This method allows the same degrees of freedom and uses the wall of the bushing as a support.

Hunner · Mar 20, 2012

Score another one for deserted Hummer Owners of America!

PreferredChassisFab · Apr 1, 2012

Four cross members are complete (two new and two old) with differential mount bushing update, they will be going to Moab with Luis.

MUTAINT · Apr 1, 2012

H32NV said:
Here's mine. Welded a straight section of square tubing into the cross member and drilled a 1-1/4" Hole sideways, welded a piece of 1-1/4 round tubing into that hole, ground everything flat, press-fit a polyurethane bushing, attached a U-bracket onto the diff and then sent a 5/8" bolt through the crossmember tube on the inside of the bushing. The old design that everyone has been using is basically a thrust bearing/bushing made out of rubber. This method allows the same degrees of freedom and uses the wall of the bushing as a support.

Nice Fab Work!

trailerpup · Apr 1, 2012

I'm still finding my way around here. Any chance of getting a link to the page where I can purchase this fix? Thanks.

Sennin · Apr 15, 2012

What would be the possibility to just send me the new upgraded bushing, as shipping to and from South Africa is going to be murder?

H3 Front diff crossmember bushing fix

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