D90s had rover diffs front and rear
D110/130 from County to facelift 2002 had the sals rear. From facelift 2002 D110/130 got the P38 short nose rear diff. There was no hard line for the change from sals to P38 in 2002 and there are examples of TD5s with a sals post 2002. Like everything LR, they used parts until the bin was empty. Or like me, swapped a Sals under a late TD5 or Puma just because they want a sals.

