I replaced the diff seals, which i got from an ebay seller in lincon for £5.99 a side , put in TOYOTA 90311-38011 and its near the top of the list. worldcarparts_uk , Oxflow Ltd
pic is the old one , but they are the same. forgot to photo.
With that done , has anyone put a fully synthetic 75w-90 in their diff.
thanks
ian.