Reply to Danga:
Thank you trying to contact Ianoz now
Danga, if you have the bearings out get on Fleabay with the part numbers, they will be out there, I know there was a place in Melbourne that stocked those old bearings. Ron Nash "Ozdozer" has reprints of the 2 Ton parts book for sale, they are invaluable as a reference and not expensive, contact him via a private message on here, he lives over in Perth and is a really good guy, very knowledgeable about old and newer Cats.
Everyone here likes pictures, give us the serial number too, there are a lot of 2 Tons around Oz.
Good luck
Mike