CV axle popped out on highway

[Joe Ford]

Driving home yesterday evening after 20 straight days of doing a full rebuild to motor, tranny, and some custom work to shifter. So excited to drive it I didn't put the hood back on it. And I was just going to beat the snow home. Then Murphy's Law roundhouse kick me in the face and the passanger side cv came out of the transmission side of axle. No bang thump or clunk. Just stopped moving. Its the axle with the support bearing. Was this just not seated in the trans you think? What do I do to ensure this doesn't happen again? The bracket that holds the support bearing didn't come loose just seems like the bearing slipped right out of the bracket. 92 mtx

 

[luigisho]

Did you have it out? Isn't there a C clip to keep it from popping out?

 

[Joe Ford]

Yes it was out. I am certain i had it all the way in when reinstalling. Although, I am often wrong. Maybe c-clip needs replaced?

 

[zoomlater]

So its your intermediate shaft that failed? Take a look at the post for 1995MTXSHO halfway down this thread

These 2 dont seem right (pics) | SHO Forum

 

[zoomlater]

Here is another thread

Intermediate shaft bearing failure | SHO Forum

 

[Joe Ford]

Interesting... good thing i just bought a whole truckload of used parts. Including a new shaft. I would like to repair mine as well. It didnt shake or shimmy or click. Some urethane oughta fix the problem? Thank you very much for the help!

 

[BaySHO Performance]

This happened to me once. The problem isn't the intermediate shaft between the transmission and hanger bearing: that one is held in place by the hanger bolts. In my case I hadn't pushed the drive shaft far enough into the end of the intermediate shaft for the C clip to catch, and it wandered out. Probably nothing wrong with the parts. You can confirm that by pushing the drive shaft in as far as it will go, then try to pull it out again to verify that the C Clip is doing its job.

 

[Joe Ford]

That's good news, thanks for the insight. I'll give that a go before I pull the other one that I have from a engine / tranny / subframe assembly. I'm working on it now, but got a little sidetracked pulling my intake to install shosource silicone couplings. I'll report back after jamming CV back in.

 

[Blk89]

It was likely not seated properly. When I did a CV boot replacement (89 MTX) found there was a snap ring on the inside of the transmission. It was very hard to push the shaft in to click it past the snap ring as the shaft compresses when pushed. Just do the inside (trans end) first and make sure it is captured and then do the outside of the drive shaft. If you do not get the inside captured it will fall out again. BTW, I hope you replaced the CV boots so you won’t have to do this again soon. You will need a special pliers to crimp the small end of the boot to the axle shaft. That’s how I remember it from 15 years ago; corrections gladly accepted.

 

[Joe Ford]

I ONLY did the trans side of both axles. I recently dropped motor/trans/subframe in one piece. Left the wheel bearing side of cv's alone and just drug the strut/rotor/caliper/knuckle/lower control arm/cv axle all in one piece. Did a full 60k + rod bearings. Opened up transmission and inspected. Welded both motor mounts and transmission mount. Installed aluminum subframe bushings. Then reinstalled everything. I don't remember if I double checked if the CV seated all the way. It took me 15 long days. I was so damn excited to just drive the car that I very well may have not double checked.

 

[Joe Ford]

Oh, by the way, girlfriends LOVE when you spend more time and money on 30 year old vehicles than you do on them. SHO's before Hoes.

 

[BaySHO Performance]

It was likely not seated properly. When I did a CV boot replacement (89 MTX) found there was a snap ring on the inside of the transmission. It was very hard to push the shaft in to click it past the snap ring as the shaft compresses when pushed.

I suspect that you are talking about the driver's side shaft.

Joe's problem is on the passenger side. The passenger intermediate (inner) shaft can only be bolted to the axle hanger bearing if it is fully seated in the transmission. So, Joe, if that side popped out of the transmission itself, it's because you didn't reinstall the two 10mm bolts holding the shaft to the bearing. If the outer shaft popped out of the intermediate shaft, it's because you didn't push it in hard enough for the C clip to catch, which is what happened to me.

 

[Joe Ford]

The 2 10mm bolts were absolutely installed. But the bearing moved out of the bracket. Maybe pics will help.

 

[Joe Ford]

Anybody get shosource silicone intake couplings where the DIS side of the intake couplings are hella loose?

 

[Joe Ford]

 

[Joe Ford]

 

[BaySHO Performance]

The 2 10mm bolts were absolutely installed. But the bearing moved out of the bracket. Maybe pics will help.

OK, so the bearing itself failed.
Axle Hanger Bearing E6DZ3K093B. Obsolete, none in dealer inventory or eBay. Don't know if this will work:

https://www.rockauto.com/en/catalog...3,drivetrain,drive+shaft+center+support,12743

 

[Joe Ford]

Bearing seems to spin just fine, and neither boots are ripped. For now, im just gonna replace whole shaft with a spare that i have. Have a tube of 3M Windo Weld that Im gonna try and repair the bearing with sometime soon. Thanks guys!

 

[Joe Ford]

Feast your eyes boys. That what i call a spare, spare intermediate shaft.

 

[Dannyboy puckett]

Oh, by the way, girlfriends LOVE when you spend more time and money on 30 year old vehicles than you do on them. SHO's before Hoes.

Well put. Lol. The wife is even more unforgiving.just get married.heh heh. My mustang is so much easier to work on....but I love my sho.