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-   -   GMC diff whines (

cindyandsean 10-24-2003 08:44 PM

GMC diff whines
I have an '89 gmc van.The rear end whines above 35 m.p.h. then is quiet at highway speed(55 or more)also is quiet accellerating uphill.I suppose it's worn carrier bearings am I correct???:confused:

BstMech 10-24-2003 08:51 PM

Check the pinion flange (drive shaft) for slop, it's probably the crush sleeve.

cindyandsean 10-24-2003 09:09 PM

Thanks for the reply,
Just went out and checked,hanger(center)bearing rubber is broken loose of the carrier part,but pinnion flange area seems real tight.Just bought the van,had bad axle seal leak may have run low on fluid before I got to it???

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