Used the diff, or the whole LS rear suspension assembly?

The rear suspension in those cars is an SLA design with the arms mounted at an oblique angle, it works quite well in the LS (and Jag S-type) but it's a funny looking thing...

I'm not sure what else uses that particular diff, there doesn't seem to be a lot available for it, Jag couldn't even be bothered to put a limited-slip in the S-type R.