Bag-o-rocks Feeling Ideas Needed

[fatbillybob]

I have a 2003 4x4 2500 suburban lsd rear. Sometimes when I back up from stopped with the wheel turned maybe 90 degrees or on a very very rare occasion if going forward with steering wheel 90 degrees to make a turn from dead stop I get a small noise in the front end that I can just barely feel in the steering wheel but hear more. It sounds and feels just like limited slip plates grinding on each other like the normal function in a rear LSD. The problem is my noise is new and coming from the front. The front is a stock diff but i think it is an open diff so should not have plates or give the typical LSD chatter. It could be the driver cv joint that's where I hear it. A comparision rocking of the left and right CV seem the same. I get just a thousandth or so play in the medial end of the output shaft of the front diff on the left. This truck is torsion barred so the TSB for the coil spring isolator does not apply.

 

Does anyone have any ideas? I hate to start part replacing and guessing.

 

Thanks!!

[Zembonez]

Does anyone have any ideas? I hate to start part replacing and guessing.

Thanks!!

My money is on a CV joint. They can get noisy at extreme angles long before they need any attention. All it takes is a little wear. I would wait for the noise to worsen (if it does) before I started throwing parts at it though... especially since it is rarely doing it.

 

Just my opinion.