Emergency front CV trail fix

[rascole]

I've been working the last 2 weeks straight and I got bored last weekend. I took an old busted front CV, complements of Moab, and removed the center section and milled the flanges down. I figured they can be used to get out of a jam in 3 wheel drive mode without spilling the axle fluid everywhere. Not sure the outboard is necessary since the hub bearings are a sealed 1 piece design.

 

[lowtrac]

Seems like a good idea to me. I need to do that with one of mine. I agree that the outer portion is probably unnecessary.

 

[rascole]

Found a good video on YouTube that pretty much shows why you NEED to have the outer shaft in and tight. https://youtu.be/JMyTWMnOO0s

 

[Big2dabank]

yes outer shaft is also needed, at least on the H2, not sure about the H3. I had already used my spare shaft and had a second shaft break, so I drove less than 3 miles in my H2 at highway speed without one of the shafts and almost had the outer hub bearing and wheel separate from the hub. It warped the brake rotor, overheated the abs sensor, and obviously destroyed the hub. Extra $60 shaft cost me over $500. I thought about doing exactly what rascole did, but it was easier to just carry two spare shafts for me.

 

[rascole]

I also carry 2 spare shafts, this was more of a project to kill time at work.

 

[alrock]

Interesting

 

[cbetts]

I keep two inner pieces in my box for that reason. I like your solution better.

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[atvspeed4]

Definitely need outer installed that provides preload on the bearings. The only thing that holds them together without a CV is a small overlapping lip. I've seen people lose wheels before because they thought unit bearings were something special that didn't require a shaft to rotate on and provide proper preload.

 

[lowtrac]

Definitely need outer installed that provides preload on the bearings. The only thing that holds them together without a CV is a small overlapping lip. I've seen people lose wheels before because they thought unit bearings were something special that didn't require a shaft to rotate on and provide proper preload.

Good to know about the preload. How does a front hub differ in a 2WD application? I just assumed they used the same bearing, just one was splined for the axle shaft. I've swapped hubs on other GM trucks, but they've all been 4WD.

 

[Mb30sdl]

Interesting I exploded outboard CV on H2 and H3T on the trail
(Didn't feel like changing it) and then drove home ~100 mi each time.
Then swapped it at my convince.


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[speedy]

Interesting I exploded outboard CV on H2 and H3T on the trail
(Didn't feel like changing it) and then drove home ~100 mi each time.
Then swapped it at my convince.


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We went close to a 1k with no axles in either side.:whaa::whaa: Living life on the edge:wink:

"Disclaimer"
Not saying it will work for you.User beware :corn:

Rascole has the right idea