Blew the rear diff offroading, Got carried away showing up a spec'd up shogun

It a 1994 softdash and has the rubber coupler thingy on the rear prop. What Diff do i need to repair?

Also My mate has a rolling chassis of an early range on old style plates. Not sure of the year. Would this fit?

Thanks in advance!

24 spline rover diff

Your mates will be an older design and won't be a straight forward fit.

Plenty of 24 spline diffs about, I got a pair of axles for £100 recently.