Nah just cleaned it all up and audited the crazy other stuff that came with it :) was going to rebuild the diff last night but CBA. One of the clutch plates needs a bit of TLC too, looks like some dirt got in it and it's carved some grooves in to it. Will probably be OK.
Have you TRFed the DN01 yet? DT02 with 10.5, 2s is a bit of a handful, fun though.
May have done a foolish thing, ordered another buggy!