Not now; no.
Like I say it was fifteen years or more back, and I've forgotten.
Dunno if it was a limited slip, and wouldn't have a clue about the ratio.
Sorry I can't be of more help, but if I've given you food for thought; that's all good.

Take a good look at the back end of your car, measure it up, and at the next opportunity do the same thing to a Jag diff/back axle.
Crawl around under cars at the shows you visit, you're bound to find a Jag backend somewhere, they're easily identifiable at a glance with their in-board disc set-up.
Look at it and measure it, compare it with your chassis rails etc., and you'll see what I mean about an easy swap.

.