Can a bad front diff tear up CV's?

[TYTILIDIE]

I am just curious because i just replaced my CV's in August and they are already starting to make snapping sounds when I back up. I was wondering if the front diff was bad coud it cause this? On my Vette, my rear diff was bad on the driver side which resulted in me constantly changing out the u joints on the half shaft on that side. I know its not a Vette but wonder if it could be a similar concept.

 

[Foot Performance]

Re: Can a bad front diff tear up CV's?

If you have a side bearing out the shaft could spin out of balance and possibly cause an issue.

But what kind of shafts did you use?

 

[TYTILIDIE]

Re: Can a bad front diff tear up CV's?

Pep Boys.

 

['JustDreamin']

Re: Can a bad front diff tear up CV's?

Pep Boys.

And you're having problems with them? I'm shocked....

Maybe you should try better parts.....


But yes, if you've got a messed up front diff, it "could" take halfshafts out. But I haven't heard too much of that kind of thing happening.

'JustDreamin'

 

[James Thomas]

Re: Can a bad front diff tear up CV's?

Hope you got the "Life Time Warranty" ones. The PB's shafts suck (too me any way). Second set L&R went on the wifes baby mobile and I just heard it poping again today (six months on the third set) and the second set is poping on the Escort "company runner". Think I'm just gonna ask for a refund on both.

_________
James

 

[TYTILIDIE]

Re: Can a bad front diff tear up CV's?

Where do you guys recommend getting them? Or should I try buying new instead of remans? I cant change these things out all the itme, its ridiculous. My stock ones lasted to 190k.

 

[midnightbluS10]

Re: Can a bad front diff tear up CV's?

Ithought I read on here that NAPA had good CV shafts.

 

[Black Knight]

Re: Can a bad front diff tear up CV's?

If you have a side bearing out the shaft could spin out of balance and possibly cause an issue.

But what kind of shafts did you use?

IMO If that was the case, more then likely he would have ruined the axle seals with the movement allowed by the bearing being bad. There would be axle fluid leaking all over the place and an obvious problem, I would recommend as everyone else has, buy better axles. Nothing wrong with reman's just get better quaility ones.

 

[Foot Performance]

Re: Can a bad front diff tear up CV's?

IMO If that was the case, more then likely he would have ruined the axle seals with the movement allowed by the bearing being bad. There would be axle fluid leaking all over the place and an obvious problem, I would recommend as everyone else has, buy better axles. Nothing wrong with reman's just get better quaility ones.

This is true but to me that is the only way i could see the front diff give an axle problem :tup:

 

['JustDreamin']

Re: Can a bad front diff tear up CV's?

I don't know, have you seen some of the gearsets in these trucks when they've been neglected? I know the gears out of my Bravada were shot at 104k. Had all kinds of slop in them (like spin the pinion 1/4 to 3/8 turn without the halfshafts moving). That puts impact loads on the halfshafts when you take that slop out. Doesn't help the rest of the driveline either.

But, my guess is that the Pep Boys rebuilds were of lower quality than everyone would like.

'JustDreamin'

 

[TYTILIDIE]

Re: Can a bad front diff tear up CV's?

Damn guys, I just replaced the half shaft again this morning, drove not even 100 miles and me and the wife were coasting up the highway at 70 in the left lane when all of a sudden there was a loud bang and the truck jerked HARD to the right, had another car been there, I wouldnt be hee right now. I slammed on the brakes and almost hit the guard rail, I couldnt turn the wheel. So I get in the shoulder and get her straightened out and just hear this clanking sound. I pull over and get out, find pieces of something scattered everywhere, ball bearings, and some other crap. I go to pick this piece of metal up and its scorching hot and burned the hell out of my finger. So I was luckily able to limp the truck home got it up and stands and the CV shaft is totally split in two. Not even 100 miles!! Those who know what entails installing one should know that there isnt much to screw up, so I know it cant be me. Is it really possible these shafts are that crappy? I put my hand on the axle and turned it and there is about 1/2" of play there from side to side, could it indeed be the front diff doing this? Depending on the response I get here, I am going to demand Pep boys do SOMETHING about this, this is not a good thing. Couldve killed me.

 

[TYTILIDIE]

Re: Can a bad front diff tear up CV's?

 

[dgoodhue]

Re: Can a bad front diff tear up CV's?

I highly doubt the front differential is at fault. If anything I would look at the front wheel bearings, Maybe they are worn and that side of axle being bumped into by the spindle (I am grasping at straws though)

 

[TYTILIDIE]

Re: Can a bad front diff tear up CV's?

A new hub went in with the cv this morning as well. Doubt thats is but I could be wrong. I just got my money back from Pep Boys and the Mgr was concerned that it looked like it got hot where the spindle goes through the wheel bearing hub, so maybe that is a problem.

 

[NecroWolf]

Re: Can a bad front diff tear up CV's?

did you beat the manager with whats left of the cv shafts for almost killing you?

don't suppose that hub/rotor was dragging really bad causing extra load?

 

[Black Knight]

Re: Can a bad front diff tear up CV's?

did you beat the manager with whats left of the cv shafts for almost killing you?

don't suppose that hub/rotor was dragging really bad causing extra load?

If the hub/bearing assembly was causing the axles to go bad ( find that kind of hard to buy as the issue ) how is that the mangers fault?

Mike if the hub was bad enough to cause that kind of damage it should have been really obvious to you it was bad. Either it would have a very significant amount of movement 1/4"+ and/or it probably would have been making a lot of noise, loud growl.

Generaly though when a bearing has a lot of movement in it the rotor is allowed to move out of it's normal area and starts rubbing on things (dust sheild, caliper, caliper bracket, ect.) and many people mistake it for the brakes needing replaced. Sometimes you notice the ABS light coming on randomly, because the amount of movement allowed causes the sensor to not read properly.:2cents:

I hope this does take care of the problem for you Mike, situations like that can be pretty scary.

 

[TYTILIDIE]

Re: Can a bad front diff tear up CV's?

Well, I just got back form Autozone. I paid $60 for a brand new unit. Not sure why I didnt do that before cause I always go to AZ but thats what I did. Funny thing here is htat remans are the same price but have a $30 core? If this one goes bad I may put the truck away for a while til I can afford to pull the front diff, rebuild it and replace my entire front driveline stuff with GM stuff only. Hopefully this is itthough.

What really irritating me is that I have spent the last week drawing up a new bin for the truck, hoping to blow my current one out of the water but I cant keep the damn thing on the road long enough to do any real testing, hell, I havent even loaded it in yet :roll: