Possible Differential Problem

[steve1479]

Well, I've got a new noise that just popped up the other day.

After going on a long drive, I noticed that my differential would make a louder than normal noise. It only happens when I'm turning left or right from a stop OR a very very slow crawl where the LSD is trying to engage.

Normally the engagement of the LSD doesn't make too much noise, however, this noise was almost like a metallic screech.

It's never happened before and now I'm somewhat worried.

I have a JZA70 Supra with the OEM Torsen LSD unit in the diff.

I replaced the fluid in the carrier to Redline fluid about 3 months ago with no issues.

Anyone have ANY ideas what's causing this? I don't have time to crack the diff open and inspect it at the moment.

 

[steve1479]

No one?

 

[mkiiichip]

When was the last time the fluid was changed?

 

[steve1479]

about a 2 months ago, replaced with Redline 75W-90 NS and had no problems at all up until now

 

[CajunKenny]

91's have plastic end links. Maybe one of them broke and/or an end link tab broke and your endlink is floating around down there...?

 

[mkiiichip]

Did you use any LSD additive?

 

[steve1479]

I'll have to check the end links in the rear, I didn't use any additive. I was always told that it was not necessary with the Torsen unit because it does not use clutches to operate so I didn't bother.