cv joint axle failure?

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Feb 12, 2009
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Hey Folks,

Not sure what else to call it, but for now I'll call it a CV axle failure. Story, as short as I can keep it: Heading down to the San Diego area on Saturday evening for a party some friends have been inviting us for years to attend. Garmin had us at about a 2 hour time frame, I was determined to make it in 1 1/2. I was moving at a pretty good pace at times, but nothing I haven't done in the past, but not that often by any means. We were on a two lane highway when all of a sudden I feel this horendous driveline failure....whining, loss of power, grinding noises, etc. I immediately bump up the shifter to N and start moving off to the emergency lane (only place on the highway that had one) and start appying brakes, but they do not feel right.

I stop and go to put it in park, but do not feel like the tranny has really engaged, apply emergency brake and she holds. As I exit, there is smoke coming from the driver front side but no heavy smell of any kind. I look up underneath and the driver side axle seems to be pulled away from the spindle/hub area (passenger side one has what I'll call the cover right up against the dust shield, driver side is pulled back a good 2-3 inches), there seems to be grease spread out over the suspension also. Looking from the tire side, the rotor is pushed up against the caliper and the rotor is scared - s****ed (probably where the smoke was coming from).

Tangent story....we are 5 miles from the party after we have traveled approximately 110 miles from the L.A. area. As I start to make phone calls (no AAA....I know, I know, but the cruiser is my tow vehicle....18 foot car hauler sitting at home) to get her towed home, I decide to turn the car back on and see what happens when I engage a gear. Not good, approximately 15 minutes have gone by and as I engage R or D there is a whining noise, almost grinding.....but of course not in N or P. Put it back in P and shut it off. 20 minutes later I turn her back on but this time the gears do engage and I am able to move the car forward and backward. Our friend comes and picks us up as we have set up tow service for an hour later to take us home. But before we go to their house, I am able to move the cruiser back and off the road a little more, it doesn't feel right, probably because of the s****ing rotor-caliper.

Fast forward, today: I pick up the car from the shop, hub/spindle is fine, bearings are good, rotor was turned (it was a new DBA rotor, only a month old), front diff is fine, oil in diff is good, two new axles installed. Looking at the axle in question, the splines on the tip (where it goes into the hub first) are gone, ground down to almost smooth....but axle splines back from there are in good shape. Cruiser has 171,000 miles on her. It is my daily driver and it gets used for everything; driving to Utah (skiing), towing a boat to the river, towing a travel trailer, and few times a year towing a 3K race car. Go back to last week and the only possible symptom that I may have missed was that the brake pedal had a long travel, longer than normal, especially after new front brakes. On second pedal pump I would get a firm pedal feel.

All we can come up with is that one of the joints on the axle failed, allowing the axle to come out of the hub?? No visible signs of catastrophic failure anywhere else.
 
Sounds like you dropped the snap ring off the end of the axle allowing it to slip back. I guess your drive flange would be a bit worn as well. Someone else here recently dropped the snap ring as well, there were some pics posted.
 
New rotors 30 days ago and now splines strip. I would look at what was done wrong on the rotor replacement. The axle is not just going to strip or break. Something was put together incorrectly is my guess.
 
100 TD said:
Sounds like you dropped the snap ring off the end of the axle allowing it to slip back. I guess your drive flange would be a bit worn as well. Someone else here recently dropped the snap ring as well, there were some pics posted.
New rotors 30 days ago and now splines strip. I would look at what was done wrong on the rotor replacement. The axle is not just going to strip or break. Something was put together incorrectly is my guess.
IIRC the other poster was in a similar situation, just didn't want to point the finger too hard......
 
I was kind of thinking along the same lines.....seemed kind of coincidental that it happened soon after :confused:. The same shop did the brakes, I trust the guy, he has always been good to me, but now I am wondering if he rushed it and something was missed. What would cause the axle to slip out? Snap ring on that axle? Loose retaining nut or something of that nature? I have worked on my old car (66 Mustang) and assume that this one is not much different when it comes down to it....as far as the supension goes.

In hindsight....don't know how much this would come into play....but the car feels a lot tighter now. Thinking back, the car doesn't seem to have any driveline slop/lash anymore. In the past, after pulling out of the driveway and shifting into D, you could feel a decent "clunk" (but unfortunately, it was something I got used to over a long period of time and relegated it to old age). Also, sometimes, if I was coming off the gas but lets say the light turned green and I went back to the accel, I would also feel a little slop/slight clunk in the driveline.

I was doing some searching last night, and came across some threads that kind of showed the joints on one of these axles...some of you know exactly what they look like, but I am assuming that they are fairly stout in construction.

My only silver lining on this whole situation is that I wasn't in the process of towing one of my vehicles when this happened, that wouldn't be good.

Thanks for the input so far.
 

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