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H3/H3T Cross Member Failure

PreferredChassisFab

Yosemite Sam
Messages
168
Location
Tucson, AZ
Over the last three and a half years that PCF has been doing the ScorpWorks Cross Member Updates, the original design "A" cross members have shown a common and often critical mode of failure. The mounting sleeves breaking out of the cross member mounting area. This failure is due to the sub-par welding practices used in the OEM assembly practices and is exaggerated when the bushing fails or mounting bolts are allowed to run loose. The installation of larger tires and aggressive driving practices, which increase the rotational torque, will also exaggerate this failure. Of all of the cores returned 95% of "A" cores are broke, 30% to 40% broke critically. The "A" cross member is the "beefiest" cross member available and once repaired and the ScorpWorks modification is performed it will provide a reliable, sturdy mounting solution to the H3/H3T front differential.
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alrock

El Diablo
Staff member
Messages
10,460
Location
Scottsdale
Years past I saw a few owners have broken crossmembers replaced under warranty and the bushing was actually intact, or mostly so
 

PreferredChassisFab

Yosemite Sam
Messages
168
Location
Tucson, AZ
PCF received this Alpha cross member core, it is the worst end failure we have seen. Just a reminder what a failed bushing and/or loose frame mounting bolts will cause. Keep those cross member mounting bolts tight and inspect your bushing!
b7e73fbba234a26687654482e7a36358.jpg



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CaseyS

Well-Known Member
Messages
733
Location
Louisiana
How are you repairing these ends. Mine had similar looking ends and I cleaned the area as best as I could and welded the sleeves back in place. I thought of cutting the whole end off and using something like sch80 pipe nipples to build the sleeves back up.
 

RamRod

Well-Known Member
Messages
3,914
Location
AB, Canada
Wow, thats scares me into not wanting to check mine out...... be right back I am got to go make sure mine arnt like that!
 

PreferredChassisFab

Yosemite Sam
Messages
168
Location
Tucson, AZ
Latest "Best Broken H3 Cross Member" these two pics are from a cross member received in as a core. I don't think it would have stayed attached long. Bad bushing and loose bolts can really cause damage!
96d997d718f75e33108c68bdf7d209b8.jpg
4baa797d7a78ee5d9c3c222aaac2c43b.jpg



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mantracker

Well-Known Member
Messages
159
Location
Tennessee
Sorry for the confusion. I didn't mean it that way. I stated that I had better check the bolts on my scorpworks cross member, and WoowardsH3 asked, " what cross member is that?". I was refering to my scorpworks cross member, when I stated, " the one you get from Dwaine". Not the one that's broken.
Dwaine makes replacement products that are far superior to to OEM part. I have replaced most everything he makes an upgrade for.:emb:
 
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