Iv got a old DW 21 that I'm going to restore ,it's on 29.5/29 tyres can any one tell me what else runs this size
Some older 623's, 824B, 988 come to mind. There are others as well, but it is not a popular size with much newer equipment.
If you are looking for new tyres, Access Imports in Dalby, QLD may be able to bring across a new set of these for your project, as they are known for supplying parts for large scrapers.
Just Curious. Wondering how the restoration is going. Always looking to see pictures.