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Tailshaft phasing

maldotcom2

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After i swapped my diff there's a slight whirring noise coming from the rear, now this could very well be an LSD in need of new cones or bearings, but i read in my manual that an out of phase tail shaft could cause whirring.

Is this something i can fix myself and if so, how? Or is it a professional job?
 

delcowizzid

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did you pull the driveshaft in half or something
 

Reaper

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After i swapped my diff there's a slight whirring noise coming from the rear, now this could very well be an LSD in need of new cones or bearings, but i read in my manual that an out of phase tail shaft could cause whirring.

Is this something i can fix myself and if so, how? Or is it a professional job?
Unbolt the tail shaft, spin it 180 deg and bolt it up again. Might be better, might be worse, might have zero impact. You won't know until you try it. It did fix a vibration I had in my old VP years ago.

Reaper
 

maldotcom2

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Nah i didn't pull it in half. Just disconnected it at the diff obviously. It makes the noise as soon as i touch the accelerator no matter how lightly, but not coasting, does this sound consitent? I'm really just stabbing in the dark here.
 

delcowizzid

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youve probably got a sloppy diff with a knaffed bearing or teeth on the crown wheel and pinion
 

Not_An_Abba_Fan

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If it only does it under load chances are it is gears. A bearing in the diff will make noise no matter what. Are they meshed correctly? If the teeth aren't meshed correctly it will whine.
 
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