Carrier bearing problems

I hope you are getting warranty then at least! Any pictures?

 

Has the driveline been balanced and they definately don't make the parts as reliable anymore also I would say check the play on you're power dovider as well as you're slider on you're driveline. Not only up and down play but also the in and out play of you're power divider besides that I can't possibly think of anything else

 

Is the carrier bearing mount located properly, front to back? I've seen a couple trucks with the bracket mounted to far forward, stressing the bearing laterally and causing premature failure.

 

Not trying to be a smart *$$ but some have a front and back, Took my buddy 3 carrier bearings to figure it out on his FLD, only about 1/8" difference from turning it around but was enough to stop chewing them up. Also don't be afraid of the grease gun on the new one, no such thing as too much grease, might get messy but will not hurt it

 

Could you post a pic of the grease fitting on your carrier bearing? I've had trouble locating it on everyone I've ever had.

 

I never noticed a grease fitting on any truck that I worked on.

I'll bet the carrier bearing is being installed wrong.....somehow.

 

Some carrier bearings don't require side shields, if the new one doesn't come with them, remove and don't reinstall the old ones. Seen that before, it'll cause failure.

 

I was being sarcastic. They aren't greasable, but thanks.

 

Phasing?

Timing?

I guess these are new terms for driveline engineering?

I understand these are interchangeable with alignment - both of the driveline and of the expandable joints on the drivershaft.

First thing that comes to mind is the driveshafts are out of balance which looking at what phasing and timing has nothing to do with balancing the actual driveshaft. They do go out of balance for different reasons, one is new joints. The other thing that I have seen is a bent driveshaft when a joint was installed - don't ask me how it was done but it happened. If the shafts are whipping around, they will wear out the bearing quickly.