[LMH]

I think so, yes. There are a few different 4HU diffs used in the Jaguar though. The issue with them all though is no front bolt bosses in the nose for mounting like the Cobra 4HU has. You can see them in the photo you posted above. Will the mounts you weld in be strong enough is the question.
I always felt like a mount could be fabricated that wrapped around the nose of the Jaguar differential and be bolted to the frame but I don't know of anyone who's done that. It's basically round and I would think it could be done. Side mounts could be fabricated that bolt to the existing side plates, so that's not that big of a deal.
Larry