Buy DF03 dog-done la. The head of DF02 dog-done is bigger than DF03 and hence it could be inserted into the TA01 hub (identical to DF03's hub).
I know that WaiGo has stock. (DF03 dog bone is same as the one of "double motor big foot" ie. pictures #1,2, 4,5 in floor #91)
That's why I ask you to buy DF03 dog bone la:lol :lol :lol
I think DF03 dog bone is ok
Give you some "add oil", My Ta01 plus
I use 2 hr to corr this plus vers for you to take a look ... (long long time ago is this vers...)