What’s this noise on my TA?

Bru

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Well, I take back the conditions of reverse. That seems to be a different noise coming from the rear when under load and both rear tires spinning backward. It’s more of a deeper slow door creaking growl.

Cool.
 

CMNTMXR57

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A U-joint wouldn't necessarily squeal like that. It's bore more of a squeaking as the shaft rotates and obviously pick up in cadence as rpm's increased. You also might (most likely), get a vibration at moderate speeds. I just went through this on the Suburban.
 

daturbosix

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[MENTION=12]Bru[/MENTION] hows the diff fluid look?
is it possible that the carrier bearings just shit the bed and that noise is resonating through the driveshaft to the tail?

i talked with Carl here at redline powertrain and he said he has never seen a case or tail bushing cause a noise like that
 

Bru

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[MENTION=12]Bru[/MENTION] hows the diff fluid look?
is it possible that the carrier bearings just shit the bed and that noise is resonating through the driveshaft to the tail?

i talked with Carl here at redline powertrain and he said he has never seen a case or tail bushing cause a noise like that



I changed it before TCG Tour 2016 using GM LSD additive, so like 5,000 miles ago.

Hmm, carrier bearing. Could be a possibility. I swear the noise is coming from the tail shaft area, but acoustics are weird under there, especially when it’s up in the air on the ground.

Marty installed the gears at your shop back in 2011, and you ordered the gears and master install kit for me. It’s only been about 12-15,000 miles, so maybe not the carrier unless something else has worn it out.
 
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