Hello I’ve had the nismo gt 2way diff for about a year now barely driven the car but this past weekend I took my z out and did a small brake stand and now I’m having my passenger wheel lock up as I accelerate. Driving normal it doesn’t seem to lock up but I can feel a pull to the left and as I press the throttle little more I can hear that wheel locking up and in reverse it does the same. I figured the nismo gt could handle some beating but did I brake something inside or maybe try adjusting it? Driving it under low force it doesnt make any noise even when I get on it still no clunking just the 1 wheel locking up now. I drained the fluid also and no metal shavings were in the fluid.

 

What kind of LSD fluid are you using?

 

The nismo fluid that came with it. Did the break in then swapped out the fluid with the same 75w140 nismo competition oil

 

Check the brake caliper. Unless the diff install was botched, I'd be surprised if that's the issue.

 

Checked the brake caliper and it’s fine car rolls no issue only seems to lock up under heavy pressure and reverse. Wouldn’t be a cv axle issue would it or possibly wheel hub

 

I just took the diff out of the car and opened it up and from the looks of it everything seems fine but I didn’t tear into it

 

So, you're probably using the Motul 75-140W diff fluid and I've used that same product for going on 16 years for W2W racing. Have you considered adding redline LSD slip additive to smooth out the lockup a bit? Try half a pint and see if it makes a difference.

 

I never had a problem with how it was it wasn’t terrible to me. The issue is now every time I get on the gas I hear the passenger rear tire skidding and it doesn’t stop as if it’s locking up and it shouldn’t be