Maybe someone has some input here... I have a Quaife diff with only about 7k miles. Just recently I've been having the issue where it seems like I'm getting a lot more right right wheel spin, like the diff is biasing the torque to the right wheel but not the left. I've been having a hard time getting the back end to kick out when turning to the right, I just get inside wheel spin. It still seems to slide out as normal when turning left. The only thing that has changed on my car lately is I did lower my BC Coilovers a little more, but I wouldn't think this would cause such a drastic change in handling characteristics. Any one have any ideas or experienced this before? Or maybe know of a way to test the rear diff to see if it's failing?

 

Kind of a strange question
But when I read this a small "test" I did when I first got mine came to mind. I didn't want to do some donuts to test mine right away, so there is a rarely used side road by my house that they love to put a lot of dirt on the shoulder every year to be cheap. Put one side of the car on something like that and leave the other side on pavement. Take off hard but not like a drag strip launch. Very little dirt should kick up on the one side and the tire on the pavement may grab so hard that you leave a burnout mark. Try the opposite side. Compare. May be difficult to find a safe spot to do this though. Don't be the guy everybody on the road hates doin' crazy stuff on the shoulder and spit gravel at someone or get a stupid ticket. Only thing I can think of to help.
Putting it up in the air and spinning tires I've found can give mixed results. Don't know what else you can do but to test it on two different surfaces like that to test it out and see if it does what it should!

 

A Quaife really cant "fail" as you're describing. Best guess is the right rear wheel is lifting. Check your corner balance, sway bars, and suspension travel.

 

Anyone have any ideas? This seemed to get a little better when a changed my diff fluid a few months ago, but it seems to be acting up more often than working properly again.

 

Did you ever address the questions mentioned above ?

 

Still having issues with my pass side rear wheel spinning only on right turns and the back end not wanting to kick out... I've messed with the suspension settings countless times and installed adjustable endlinks to see if that would help. Nothing seems to be working. My next idea is to swap the shocks on the rear to opposite sides to see if the problem switches to the driver rear wheel, thinking it may possibly be a faulty shock or something. I'm kind of at a loss, can't believe I'm still having problems with this. Any ideas? Anything in particular I should check? I've tried raising the ride height, adjusting the suspension travel etc, and nothing really seems to help.