Hummer H3 HD Dana 50/ CV shaft upgrade

[atvspeed4]

Have not been able to figure it out. Same vehicle, same bushings, same housing, same part number cv shafts. Really frustrating we have crate of 5 housings and custom machined shafts just sitting collecting dust. One of our friends is running one in his H3 to log miles and trail time to see if he has same failure mode.

 

[EndeavoredH3]

Have not been able to figure it out. Same vehicle, same bushings, same housing, same part number cv shafts. Really frustrating we have crate of 5 housings and custom machined shafts just sitting collecting dust. One of our friends is running one in his H3 to log miles and trail time to see if he has same failure mode.

I’d be more than glad to test it out west .

In all seriousness, can log miles all over Arizona. Have rock trails 30 minutes away, and can daily drive ~30 miles a day if needed. Have experience with aftermarket one off parts, understand nothing aftermarket is a one size fits all and can adapt the differential as needed.

 

[atvspeed4]

I’d be more than glad to test it out west .

In all seriousness, can log miles all over Arizona. Have rock trails 30 minutes away, and can daily drive ~30 miles a day if needed. Have experience with aftermarket one off parts, understand nothing aftermarket is a one size fits all and can adapt the differential as needed.

If you were closer we could consider it but we really want to be local so if there are any issues we can get our eyes on it quick, pull it apart, troubleshoot and get it back on the trail.

 

[EndeavoredH3]

If you were closer we could consider it but we really want to be local so if there are any issues we can get our eyes on it quick, pull it apart, troubleshoot and get it back on the trail.

As much as Id like to have this differential under the truck, I equally understand you guys wanting to keep it local.

 

[rascole]

As much as Id like to have this differential under the truck, I equally understand you guys wanting to keep it local.

Sounds like a driveway swap is needed in Sand Hollow this year!!!!!

 

[EndeavoredH3]

Sounds like a driveway swap is needed in Sand Hollow this year!!!!!

There could be free shipping on Sand Hallow parts express…

 

[atvspeed4]

Our best guess right now on the issue of the CVs is that of the four H3s that have run the diff, the three that did not have a problem were running our prototype billet aluminum sleeve/ UHMW carbon black lower control arm bushings. The truck we had at the vermont pilgrimage overland event in the fall was completely stock other than the diff/ cvs and the lower control arm bushings were very old. The stock lower control arm bushings on an H3 are so large that they allow around 3/8" movement of the control arm on each side of the truck in all directions under load. This would be enough to cause the CV to hit the cross support of the lower control arm or pull out of the inner tripod cup.