I disagree, If you hear just occasional chatter (tight turns, dry pavement, especially up a steep hill) then, and ONLY then, is your Limited Slip right
If you are currently "chatter free" your LS isn't working (wait till next Winter and you'll be missin' it
) because the amount of modifier Ford recommends actually disables the clutches from working as they should. I believe Ford does this to limit customer complaints about the chatter noise and ensure the clutches make it past the warranty period.
The way I have Always set the ratio of FM to fluid is to put just a couple of oz.s in then, in a dry parking lot do tight turns and add a couple more until the chatter is almost
gone (again, full-lock turns on dry pavement, never hearing chatter otherwise) to know it's right.
I have never put the, ridiculous, 8oz.s
Ford recommends but, my LS actually works! I read Many people complain in this forum how they are "One Wheelers" with their LS. My guess is, you're about to join them....